890256780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{907}}^1$

素因数の和:989

約数の個数: 288

約数和(自身を含む): 3331560960

約数和(自身を除く): 2441304180

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 35, 36, 38, 41, 42, 45, 57, 60, 63, 70, 76, 82, 84, 90, 95, 105, 114, 123, 126, 133, 140, 164, 171, 180, 190, 205, 210, 228, 246, 252, 266, 285, 287, 315, 342, 369, 380, 399, 410, 420, 492, 532, 570, 574, 615, 630, 665, 684, 738, 779, 798, 820, 855, 861, 907, 1140, 1148, 1197, 1230, 1260, 1330, 1435, 1476, 1558, 1596, 1710, 1722, 1814, 1845, 1995, 2337, 2394, 2460, 2583, 2660, 2721, 2870, 3116, 3420, 3444, 3628, 3690, 3895, 3990, 4305, 4535, 4674, 4788, 5166, 5442, 5453, 5740, 5985, 6349, 7011, 7380, 7790, 7980, 8163, 8610, 9070, 9348, 10332, 10884, 10906, 11685, 11970, 12698, 12915, 13605, 14022, 15580, 16326, 16359, 17220, 17233, 18140, 19047, 21812, 23370, 23940, 25396, 25830, 27210, 27265, 28044, 31745, 32652, 32718, 34466, 35055, 37187, 38094, 40815, 46740, 49077, 51660, 51699, 54420, 54530, 57141, 63490, 65436, 68932, 70110, 74374, 76188, 81630, 81795, 86165, 95235, 98154, 103398, 109060, 111561, 114282, 120631, 126980, 140220, 148748, 155097, 163260, 163590, 172330, 185935, 190470, 196308, 206796, 223122, 228564, 241262, 245385, 258495, 260309, 285705, 310194, 327180, 334683, 344660, 361893, 371870, 380940, 446244, 482524, 490770, 516990, 520618, 557805, 571410, 603155, 620388, 669366, 706553, 723786, 743740, 775485, 780927, 981540, 1033980, 1041236, 1085679, 1115610, 1142820, 1206310, 1301545, 1338732, 1413106, 1447572, 1550970, 1561854, 1673415, 1809465, 2119659, 2171358, 2231220, 2342781, 2412620, 2603090, 2826212, 3101940, 3123708, 3346830, 3532765, 3618930, 3904635, 4239318, 4342716, 4685562, 4945871, 5206180, 5428395, 6358977, 6693660, 7065530, 7237860, 7809270, 8478636, 9371124, 9891742, 10598295, 10856790, 11713905, 12717954, 14131060, 14837613, 15618540, 19783484, 21196590, 21713580, 23427810, 24729355, 25435908, 29675226, 31794885, 42393180, 44512839, 46855620, 49458710, 59350452, 63589770, 74188065, 89025678, 98917420, 127179540, 148376130, 178051356, 222564195, 296752260, 445128390, 890256780]

約数ペア:

[(1, 890256780), (2, 445128390), (3, 296752260), (4, 222564195), (5, 178051356), (6, 148376130), (7, 127179540), (9, 98917420), (10, 89025678), (12, 74188065), (14, 63589770), (15, 59350452), (18, 49458710), (19, 46855620), (20, 44512839), (21, 42393180), (28, 31794885), (30, 29675226), (35, 25435908), (36, 24729355), (38, 23427810), (41, 21713580), (42, 21196590), (45, 19783484), (57, 15618540), (60, 14837613), (63, 14131060), (70, 12717954), (76, 11713905), (82, 10856790), (84, 10598295), (90, 9891742), (95, 9371124), (105, 8478636), (114, 7809270), (123, 7237860), (126, 7065530), (133, 6693660), (140, 6358977), (164, 5428395), (171, 5206180), (180, 4945871), (190, 4685562), (205, 4342716), (210, 4239318), (228, 3904635), (246, 3618930), (252, 3532765), (266, 3346830), (285, 3123708), (287, 3101940), (315, 2826212), (342, 2603090), (369, 2412620), (380, 2342781), (399, 2231220), (410, 2171358), (420, 2119659), (492, 1809465), (532, 1673415), (570, 1561854), (574, 1550970), (615, 1447572), (630, 1413106), (665, 1338732), (684, 1301545), (738, 1206310), (779, 1142820), (798, 1115610), (820, 1085679), (855, 1041236), (861, 1033980), (907, 981540), (1140, 780927), (1148, 775485), (1197, 743740), (1230, 723786), (1260, 706553), (1330, 669366), (1435, 620388), (1476, 603155), (1558, 571410), (1596, 557805), (1710, 520618), (1722, 516990), (1814, 490770), (1845, 482524), (1995, 446244), (2337, 380940), (2394, 371870), (2460, 361893), (2583, 344660), (2660, 334683), (2721, 327180), (2870, 310194), (3116, 285705), (3420, 260309), (3444, 258495), (3628, 245385), (3690, 241262), (3895, 228564), (3990, 223122), (4305, 206796), (4535, 196308), (4674, 190470), (4788, 185935), (5166, 172330), (5442, 163590), (5453, 163260), (5740, 155097), (5985, 148748), (6349, 140220), (7011, 126980), (7380, 120631), (7790, 114282), (7980, 111561), (8163, 109060), (8610, 103398), (9070, 98154), (9348, 95235), (10332, 86165), (10884, 81795), (10906, 81630), (11685, 76188), (11970, 74374), (12698, 70110), (12915, 68932), (13605, 65436), (14022, 63490), (15580, 57141), (16326, 54530), (16359, 54420), (17220, 51699), (17233, 51660), (18140, 49077), (19047, 46740), (21812, 40815), (23370, 38094), (23940, 37187), (25396, 35055), (25830, 34466), (27210, 32718), (27265, 32652), (28044, 31745)]