278829180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{613}}^1$

素因数の和:673

約数の個数: 216

約数和(自身を含む): 1021823712

約数和(自身を除く): 742994532

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 35, 36, 38, 42, 45, 57, 60, 63, 70, 76, 84, 90, 95, 105, 114, 126, 133, 140, 171, 180, 190, 210, 228, 252, 266, 285, 315, 342, 361, 380, 399, 420, 532, 570, 613, 630, 665, 684, 722, 798, 855, 1083, 1140, 1197, 1226, 1260, 1330, 1444, 1596, 1710, 1805, 1839, 1995, 2166, 2394, 2452, 2527, 2660, 3065, 3249, 3420, 3610, 3678, 3990, 4291, 4332, 4788, 5054, 5415, 5517, 5985, 6130, 6498, 7220, 7356, 7581, 7980, 8582, 9195, 10108, 10830, 11034, 11647, 11970, 12260, 12635, 12873, 12996, 15162, 16245, 17164, 18390, 21455, 21660, 22068, 22743, 23294, 23940, 25270, 25746, 27585, 30324, 32490, 34941, 36780, 37905, 38619, 42910, 45486, 46588, 50540, 51492, 55170, 58235, 64365, 64980, 69882, 75810, 77238, 81529, 85820, 90972, 104823, 110340, 113715, 116470, 128730, 139764, 151620, 154476, 163058, 174705, 193095, 209646, 221293, 227430, 232940, 244587, 257460, 326116, 349410, 386190, 407645, 419292, 442586, 454860, 489174, 524115, 663879, 698820, 733761, 772380, 815290, 885172, 978348, 1048230, 1106465, 1222935, 1327758, 1467522, 1549051, 1630580, 1991637, 2096460, 2212930, 2445870, 2655516, 2935044, 3098102, 3319395, 3668805, 3983274, 4425860, 4647153, 4891740, 6196204, 6638790, 7337610, 7745255, 7966548, 9294306, 9958185, 13277580, 13941459, 14675220, 15490510, 18588612, 19916370, 23235765, 27882918, 30981020, 39832740, 46471530, 55765836, 69707295, 92943060, 139414590, 278829180]

約数ペア:

[(1, 278829180), (2, 139414590), (3, 92943060), (4, 69707295), (5, 55765836), (6, 46471530), (7, 39832740), (9, 30981020), (10, 27882918), (12, 23235765), (14, 19916370), (15, 18588612), (18, 15490510), (19, 14675220), (20, 13941459), (21, 13277580), (28, 9958185), (30, 9294306), (35, 7966548), (36, 7745255), (38, 7337610), (42, 6638790), (45, 6196204), (57, 4891740), (60, 4647153), (63, 4425860), (70, 3983274), (76, 3668805), (84, 3319395), (90, 3098102), (95, 2935044), (105, 2655516), (114, 2445870), (126, 2212930), (133, 2096460), (140, 1991637), (171, 1630580), (180, 1549051), (190, 1467522), (210, 1327758), (228, 1222935), (252, 1106465), (266, 1048230), (285, 978348), (315, 885172), (342, 815290), (361, 772380), (380, 733761), (399, 698820), (420, 663879), (532, 524115), (570, 489174), (613, 454860), (630, 442586), (665, 419292), (684, 407645), (722, 386190), (798, 349410), (855, 326116), (1083, 257460), (1140, 244587), (1197, 232940), (1226, 227430), (1260, 221293), (1330, 209646), (1444, 193095), (1596, 174705), (1710, 163058), (1805, 154476), (1839, 151620), (1995, 139764), (2166, 128730), (2394, 116470), (2452, 113715), (2527, 110340), (2660, 104823), (3065, 90972), (3249, 85820), (3420, 81529), (3610, 77238), (3678, 75810), (3990, 69882), (4291, 64980), (4332, 64365), (4788, 58235), (5054, 55170), (5415, 51492), (5517, 50540), (5985, 46588), (6130, 45486), (6498, 42910), (7220, 38619), (7356, 37905), (7581, 36780), (7980, 34941), (8582, 32490), (9195, 30324), (10108, 27585), (10830, 25746), (11034, 25270), (11647, 23940), (11970, 23294), (12260, 22743), (12635, 22068), (12873, 21660), (12996, 21455), (15162, 18390), (16245, 17164)]