3145780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 7338240

約数和(自身を除く): 4192460

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 158, 181, 220, 316, 362, 395, 724, 790, 869, 905, 1580, 1738, 1810, 1991, 3476, 3620, 3982, 4345, 7964, 8690, 9955, 14299, 17380, 19910, 28598, 39820, 57196, 71495, 142990, 157289, 285980, 314578, 629156, 786445, 1572890, 3145780]

約数ペア:

[(1, 3145780), (2, 1572890), (4, 786445), (5, 629156), (10, 314578), (11, 285980), (20, 157289), (22, 142990), (44, 71495), (55, 57196), (79, 39820), (110, 28598), (158, 19910), (181, 17380), (220, 14299), (316, 9955), (362, 8690), (395, 7964), (724, 4345), (790, 3982), (869, 3620), (905, 3476), (1580, 1991), (1738, 1810)]