18404120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{65729}}^1$

素因数の和:65747

約数の個数: 32

約数和(自身を含む): 47325600

約数和(自身を除く): 28921480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 65729, 131458, 262916, 328645, 460103, 525832, 657290, 920206, 1314580, 1840412, 2300515, 2629160, 3680824, 4601030, 9202060, 18404120]

約数ペア:

[(1, 18404120), (2, 9202060), (4, 4601030), (5, 3680824), (7, 2629160), (8, 2300515), (10, 1840412), (14, 1314580), (20, 920206), (28, 657290), (35, 525832), (40, 460103), (56, 328645), (70, 262916), (140, 131458), (280, 65729)]