20490912

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^2\times {\mathrm{421}}^1$

素因数の和:463

約数の個数: 108

約数和(自身を含む): 63248094

約数和(自身を除く): 42757182

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 72, 78, 96, 104, 117, 144, 156, 169, 208, 234, 288, 312, 338, 416, 421, 468, 507, 624, 676, 842, 936, 1014, 1248, 1263, 1352, 1521, 1684, 1872, 2028, 2526, 2704, 3042, 3368, 3744, 3789, 4056, 5052, 5408, 5473, 6084, 6736, 7578, 8112, 10104, 10946, 12168, 13472, 15156, 16224, 16419, 20208, 21892, 24336, 30312, 32838, 40416, 43784, 48672, 49257, 60624, 65676, 71149, 87568, 98514, 121248, 131352, 142298, 175136, 197028, 213447, 262704, 284596, 394056, 426894, 525408, 569192, 640341, 788112, 853788, 1138384, 1280682, 1576224, 1707576, 2276768, 2561364, 3415152, 5122728, 6830304, 10245456, 20490912]

約数ペア:

[(1, 20490912), (2, 10245456), (3, 6830304), (4, 5122728), (6, 3415152), (8, 2561364), (9, 2276768), (12, 1707576), (13, 1576224), (16, 1280682), (18, 1138384), (24, 853788), (26, 788112), (32, 640341), (36, 569192), (39, 525408), (48, 426894), (52, 394056), (72, 284596), (78, 262704), (96, 213447), (104, 197028), (117, 175136), (144, 142298), (156, 131352), (169, 121248), (208, 98514), (234, 87568), (288, 71149), (312, 65676), (338, 60624), (416, 49257), (421, 48672), (468, 43784), (507, 40416), (624, 32838), (676, 30312), (842, 24336), (936, 21892), (1014, 20208), (1248, 16419), (1263, 16224), (1352, 15156), (1521, 13472), (1684, 12168), (1872, 10946), (2028, 10104), (2526, 8112), (2704, 7578), (3042, 6736), (3368, 6084), (3744, 5473), (3789, 5408), (4056, 5052)]