19892680

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{13441}}^1$

素因数の和:13489

約数の個数: 32

約数和(自身を含む): 45971640

約数和(自身を除く): 26078960

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 13441, 26882, 53764, 67205, 107528, 134410, 268820, 497317, 537640, 994634, 1989268, 2486585, 3978536, 4973170, 9946340, 19892680]

約数ペア:

[(1, 19892680), (2, 9946340), (4, 4973170), (5, 3978536), (8, 2486585), (10, 1989268), (20, 994634), (37, 537640), (40, 497317), (74, 268820), (148, 134410), (185, 107528), (296, 67205), (370, 53764), (740, 26882), (1480, 13441)]