641007920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{1144657}}^1$

素因数の和:1144677

約数の個数: 40

約数和(自身を含む): 1703251104

約数和(自身を除く): 1062243184

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 1144657, 2289314, 4578628, 5723285, 8012599, 9157256, 11446570, 16025198, 18314512, 22893140, 32050396, 40062995, 45786280, 64100792, 80125990, 91572560, 128201584, 160251980, 320503960, 641007920]

約数ペア:

[(1, 641007920), (2, 320503960), (4, 160251980), (5, 128201584), (7, 91572560), (8, 80125990), (10, 64100792), (14, 45786280), (16, 40062995), (20, 32050396), (28, 22893140), (35, 18314512), (40, 16025198), (56, 11446570), (70, 9157256), (80, 8012599), (112, 5723285), (140, 4578628), (280, 2289314), (560, 1144657)]