20479970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{953}}^1$

素因数の和:1274

約数の個数: 32

約数和(自身を含む): 42311808

約数和(自身を除く): 21831838

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 307, 614, 953, 1535, 1906, 2149, 3070, 4298, 4765, 6671, 9530, 10745, 13342, 21490, 33355, 66710, 292571, 585142, 1462855, 2047997, 2925710, 4095994, 10239985, 20479970]

約数ペア:

[(1, 20479970), (2, 10239985), (5, 4095994), (7, 2925710), (10, 2047997), (14, 1462855), (35, 585142), (70, 292571), (307, 66710), (614, 33355), (953, 21490), (1535, 13342), (1906, 10745), (2149, 9530), (3070, 6671), (4298, 4765)]