54990580

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{821}}^1$

素因数の和:1044

約数の個数: 48

約数和(自身を含む): 123043536

約数和(自身を除く): 68052956

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 197, 340, 394, 788, 821, 985, 1642, 1970, 3284, 3349, 3940, 4105, 6698, 8210, 13396, 13957, 16420, 16745, 27914, 33490, 55828, 66980, 69785, 139570, 161737, 279140, 323474, 646948, 808685, 1617370, 2749529, 3234740, 5499058, 10998116, 13747645, 27495290, 54990580]

約数ペア:

[(1, 54990580), (2, 27495290), (4, 13747645), (5, 10998116), (10, 5499058), (17, 3234740), (20, 2749529), (34, 1617370), (68, 808685), (85, 646948), (170, 323474), (197, 279140), (340, 161737), (394, 139570), (788, 69785), (821, 66980), (985, 55828), (1642, 33490), (1970, 27914), (3284, 16745), (3349, 16420), (3940, 13957), (4105, 13396), (6698, 8210)]