42904720

素因数分解:

$2^4\times 5^1\times {\mathrm{271}}^1\times {\mathrm{1979}}^1$

素因数の和:2263

約数の個数: 40

約数和(自身を含む): 100172160

約数和(自身を除く): 57267440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 271, 542, 1084, 1355, 1979, 2168, 2710, 3958, 4336, 5420, 7916, 9895, 10840, 15832, 19790, 21680, 31664, 39580, 79160, 158320, 536309, 1072618, 2145236, 2681545, 4290472, 5363090, 8580944, 10726180, 21452360, 42904720]

約数ペア:

[(1, 42904720), (2, 21452360), (4, 10726180), (5, 8580944), (8, 5363090), (10, 4290472), (16, 2681545), (20, 2145236), (40, 1072618), (80, 536309), (271, 158320), (542, 79160), (1084, 39580), (1355, 31664), (1979, 21680), (2168, 19790), (2710, 15832), (3958, 10840), (4336, 9895), (5420, 7916)]