645075376

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{77983}}^1$

素因数の和:78049

約数の個数: 40

約数和(自身を含む): 1392482304

約数和(自身を除く): 747406928

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 47, 88, 94, 176, 188, 376, 517, 752, 1034, 2068, 4136, 8272, 77983, 155966, 311932, 623864, 857813, 1247728, 1715626, 3431252, 3665201, 6862504, 7330402, 13725008, 14660804, 29321608, 40317211, 58643216, 80634422, 161268844, 322537688, 645075376]

約数ペア:

[(1, 645075376), (2, 322537688), (4, 161268844), (8, 80634422), (11, 58643216), (16, 40317211), (22, 29321608), (44, 14660804), (47, 13725008), (88, 7330402), (94, 6862504), (176, 3665201), (188, 3431252), (376, 1715626), (517, 1247728), (752, 857813), (1034, 623864), (2068, 311932), (4136, 155966), (8272, 77983)]