981540

素因数分解:

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

素因数の和:82

約数の個数: 144

約数和(自身を含む): 3669120

約数和(自身を除く): 2687580

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, 1140, 1148, 1197, 1230, 1260, 1330, 1435, 1476, 1558, 1596, 1710, 1722, 1845, 1995, 2337, 2394, 2460, 2583, 2660, 2870, 3116, 3420, 3444, 3690, 3895, 3990, 4305, 4674, 4788, 5166, 5453, 5740, 5985, 7011, 7380, 7790, 7980, 8610, 9348, 10332, 10906, 11685, 11970, 12915, 14022, 15580, 16359, 17220, 21812, 23370, 23940, 25830, 27265, 28044, 32718, 35055, 46740, 49077, 51660, 54530, 65436, 70110, 81795, 98154, 109060, 140220, 163590, 196308, 245385, 327180, 490770, 981540]

約数ペア:

[(1, 981540), (2, 490770), (3, 327180), (4, 245385), (5, 196308), (6, 163590), (7, 140220), (9, 109060), (10, 98154), (12, 81795), (14, 70110), (15, 65436), (18, 54530), (19, 51660), (20, 49077), (21, 46740), (28, 35055), (30, 32718), (35, 28044), (36, 27265), (38, 25830), (41, 23940), (42, 23370), (45, 21812), (57, 17220), (60, 16359), (63, 15580), (70, 14022), (76, 12915), (82, 11970), (84, 11685), (90, 10906), (95, 10332), (105, 9348), (114, 8610), (123, 7980), (126, 7790), (133, 7380), (140, 7011), (164, 5985), (171, 5740), (180, 5453), (190, 5166), (205, 4788), (210, 4674), (228, 4305), (246, 3990), (252, 3895), (266, 3690), (285, 3444), (287, 3420), (315, 3116), (342, 2870), (369, 2660), (380, 2583), (399, 2460), (410, 2394), (420, 2337), (492, 1995), (532, 1845), (570, 1722), (574, 1710), (615, 1596), (630, 1558), (665, 1476), (684, 1435), (738, 1330), (779, 1260), (798, 1230), (820, 1197), (855, 1148), (861, 1140)]