66400040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{237143}}^1$

素因数の和:237161

約数の個数: 32

約数和(自身を含む): 170743680

約数和(自身を除く): 104343640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 237143, 474286, 948572, 1185715, 1660001, 1897144, 2371430, 3320002, 4742860, 6640004, 8300005, 9485720, 13280008, 16600010, 33200020, 66400040]

約数ペア:

[(1, 66400040), (2, 33200020), (4, 16600010), (5, 13280008), (7, 9485720), (8, 8300005), (10, 6640004), (14, 4742860), (20, 3320002), (28, 2371430), (35, 1897144), (40, 1660001), (56, 1185715), (70, 948572), (140, 474286), (280, 237143)]