20525430

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{197}}^1$

素因数の和:381

約数の個数: 64

約数和(自身を含む): 52005888

約数和(自身を除く): 31480458

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 151, 197, 230, 302, 345, 394, 453, 591, 690, 755, 906, 985, 1182, 1510, 1970, 2265, 2955, 3473, 4530, 4531, 5910, 6946, 9062, 10419, 13593, 17365, 20838, 22655, 27186, 29747, 34730, 45310, 52095, 59494, 67965, 89241, 104190, 135930, 148735, 178482, 297470, 446205, 684181, 892410, 1368362, 2052543, 3420905, 4105086, 6841810, 10262715, 20525430]

約数ペア:

[(1, 20525430), (2, 10262715), (3, 6841810), (5, 4105086), (6, 3420905), (10, 2052543), (15, 1368362), (23, 892410), (30, 684181), (46, 446205), (69, 297470), (115, 178482), (138, 148735), (151, 135930), (197, 104190), (230, 89241), (302, 67965), (345, 59494), (394, 52095), (453, 45310), (591, 34730), (690, 29747), (755, 27186), (906, 22655), (985, 20838), (1182, 17365), (1510, 13593), (1970, 10419), (2265, 9062), (2955, 6946), (3473, 5910), (4530, 4531)]