20426860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{823}}^1$

素因数の和:922

約数の個数: 48

約数和(自身を含む): 46097856

約数和(自身を除く): 25670996

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 73, 85, 146, 170, 292, 340, 365, 730, 823, 1241, 1460, 1646, 2482, 3292, 4115, 4964, 6205, 8230, 12410, 13991, 16460, 24820, 27982, 55964, 60079, 69955, 120158, 139910, 240316, 279820, 300395, 600790, 1021343, 1201580, 2042686, 4085372, 5106715, 10213430, 20426860]

約数ペア:

[(1, 20426860), (2, 10213430), (4, 5106715), (5, 4085372), (10, 2042686), (17, 1201580), (20, 1021343), (34, 600790), (68, 300395), (73, 279820), (85, 240316), (146, 139910), (170, 120158), (292, 69955), (340, 60079), (365, 55964), (730, 27982), (823, 24820), (1241, 16460), (1460, 13991), (1646, 12410), (2482, 8230), (3292, 6205), (4115, 4964)]