20121056360

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{7084879}}^1$

素因数の和:7084961

約数の個数: 32

約数和(自身を含む): 45910022400

約数和(自身を除く): 25788966040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 7084879, 14169758, 28339516, 35424395, 56679032, 70848790, 141697580, 283395160, 503026409, 1006052818, 2012105636, 2515132045, 4024211272, 5030264090, 10060528180, 20121056360]

約数ペア:

[(1, 20121056360), (2, 10060528180), (4, 5030264090), (5, 4024211272), (8, 2515132045), (10, 2012105636), (20, 1006052818), (40, 503026409), (71, 283395160), (142, 141697580), (284, 70848790), (355, 56679032), (568, 35424395), (710, 28339516), (1420, 14169758), (2840, 7084879)]