2100028780

素因数分解:

$2^2\times 5^1\times {\mathrm{22441}}^1\times {\mathrm{4679}}^1$

素因数の和:27129

約数の個数: 24

約数和(自身を含む): 4411199520

約数和(自身を除く): 2311170740

約数列:

[1, 2, 4, 5, 10, 20, 4679, 9358, 18716, 22441, 23395, 44882, 46790, 89764, 93580, 112205, 224410, 448820, 105001439, 210002878, 420005756, 525007195, 1050014390, 2100028780]

約数ペア:

[(1, 2100028780), (2, 1050014390), (4, 525007195), (5, 420005756), (10, 210002878), (20, 105001439), (4679, 448820), (9358, 224410), (18716, 112205), (22441, 93580), (23395, 89764), (44882, 46790)]