8801980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{40009}}^1$

素因数の和:40029

約数の個数: 24

約数和(自身を含む): 20165040

約数和(自身を除く): 11363060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 40009, 80018, 160036, 200045, 400090, 440099, 800180, 880198, 1760396, 2200495, 4400990, 8801980]

約数ペア:

[(1, 8801980), (2, 4400990), (4, 2200495), (5, 1760396), (10, 880198), (11, 800180), (20, 440099), (22, 400090), (44, 200045), (55, 160036), (110, 80018), (220, 40009)]