25009820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1439}}^1$

素因数の和:1538

約数の個数: 48

約数和(自身を含む): 58060800

約数和(自身を除く): 33050980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 158, 220, 316, 395, 790, 869, 1439, 1580, 1738, 2878, 3476, 4345, 5756, 7195, 8690, 14390, 15829, 17380, 28780, 31658, 63316, 79145, 113681, 158290, 227362, 316580, 454724, 568405, 1136810, 1250491, 2273620, 2500982, 5001964, 6252455, 12504910, 25009820]

約数ペア:

[(1, 25009820), (2, 12504910), (4, 6252455), (5, 5001964), (10, 2500982), (11, 2273620), (20, 1250491), (22, 1136810), (44, 568405), (55, 454724), (79, 316580), (110, 227362), (158, 158290), (220, 113681), (316, 79145), (395, 63316), (790, 31658), (869, 28780), (1439, 17380), (1580, 15829), (1738, 14390), (2878, 8690), (3476, 7195), (4345, 5756)]