208021490

素因数分解:

$2^1\times 5^1\times {\mathrm{181}}^1\times {\mathrm{281}}^1\times {\mathrm{409}}^1$

素因数の和:878

約数の個数: 32

約数和(自身を含む): 378771120

約数和(自身を除く): 170749630

約数列:

[1, 2, 5, 10, 181, 281, 362, 409, 562, 818, 905, 1405, 1810, 2045, 2810, 4090, 50861, 74029, 101722, 114929, 148058, 229858, 254305, 370145, 508610, 574645, 740290, 1149290, 20802149, 41604298, 104010745, 208021490]

約数ペア:

[(1, 208021490), (2, 104010745), (5, 41604298), (10, 20802149), (181, 1149290), (281, 740290), (362, 574645), (409, 508610), (562, 370145), (818, 254305), (905, 229858), (1405, 148058), (1810, 114929), (2045, 101722), (2810, 74029), (4090, 50861)]