81837040

素因数分解:

$2^4\times 5^1\times {\mathrm{1022963}}^1$

素因数の和:1022976

約数の個数: 20

約数和(自身を含む): 190271304

約数和(自身を除く): 108434264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1022963, 2045926, 4091852, 5114815, 8183704, 10229630, 16367408, 20459260, 40918520, 81837040]

約数ペア:

[(1, 81837040), (2, 40918520), (4, 20459260), (5, 16367408), (8, 10229630), (10, 8183704), (16, 5114815), (20, 4091852), (40, 2045926), (80, 1022963)]