20313790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{521}}^1\times {\mathrm{557}}^1$

素因数の和:1092

約数の個数: 32

約数和(自身を含む): 41943744

約数和(自身を除く): 21629954

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 521, 557, 1042, 1114, 2605, 2785, 3647, 3899, 5210, 5570, 7294, 7798, 18235, 19495, 36470, 38990, 290197, 580394, 1450985, 2031379, 2901970, 4062758, 10156895, 20313790]

約数ペア:

[(1, 20313790), (2, 10156895), (5, 4062758), (7, 2901970), (10, 2031379), (14, 1450985), (35, 580394), (70, 290197), (521, 38990), (557, 36470), (1042, 19495), (1114, 18235), (2605, 7798), (2785, 7294), (3647, 5570), (3899, 5210)]