20788312

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{1039}}^1$

素因数の和:1147

約数の個数: 32

約数和(自身を含む): 40622400

約数和(自身を除く): 19834088

約数列:

[1, 2, 4, 8, 41, 61, 82, 122, 164, 244, 328, 488, 1039, 2078, 2501, 4156, 5002, 8312, 10004, 20008, 42599, 63379, 85198, 126758, 170396, 253516, 340792, 507032, 2598539, 5197078, 10394156, 20788312]

約数ペア:

[(1, 20788312), (2, 10394156), (4, 5197078), (8, 2598539), (41, 507032), (61, 340792), (82, 253516), (122, 170396), (164, 126758), (244, 85198), (328, 63379), (488, 42599), (1039, 20008), (2078, 10004), (2501, 8312), (4156, 5002)]