20545508740

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{4721}}^1\times {\mathrm{5881}}^1$

素因数の和:10648

約数の個数: 48

約数和(自身を含む): 44328587184

約数和(自身を除く): 23783078444

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 4721, 5881, 9442, 11762, 18884, 23524, 23605, 29405, 47210, 58810, 94420, 117620, 174677, 217597, 349354, 435194, 698708, 870388, 873385, 1087985, 1746770, 2175970, 3493540, 4351940, 27764201, 55528402, 111056804, 138821005, 277642010, 555284020, 1027275437, 2054550874, 4109101748, 5136377185, 10272754370, 20545508740]

約数ペア:

[(1, 20545508740), (2, 10272754370), (4, 5136377185), (5, 4109101748), (10, 2054550874), (20, 1027275437), (37, 555284020), (74, 277642010), (148, 138821005), (185, 111056804), (370, 55528402), (740, 27764201), (4721, 4351940), (5881, 3493540), (9442, 2175970), (11762, 1746770), (18884, 1087985), (23524, 873385), (23605, 870388), (29405, 698708), (47210, 435194), (58810, 349354), (94420, 217597), (117620, 174677)]