20384854

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1$

素因数の和:157

約数の個数: 64

約数和(自身を含む): 39398400

約数和(自身を除く): 19013546

約数列:

[1, 2, 7, 14, 23, 29, 37, 46, 58, 59, 74, 118, 161, 203, 259, 322, 406, 413, 518, 667, 826, 851, 1073, 1334, 1357, 1702, 1711, 2146, 2183, 2714, 3422, 4366, 4669, 5957, 7511, 9338, 9499, 11914, 11977, 15022, 15281, 18998, 23954, 24679, 30562, 39353, 49358, 50209, 63307, 78706, 100418, 126614, 172753, 275471, 345506, 351463, 443149, 550942, 702926, 886298, 1456061, 2912122, 10192427, 20384854]

約数ペア:

[(1, 20384854), (2, 10192427), (7, 2912122), (14, 1456061), (23, 886298), (29, 702926), (37, 550942), (46, 443149), (58, 351463), (59, 345506), (74, 275471), (118, 172753), (161, 126614), (203, 100418), (259, 78706), (322, 63307), (406, 50209), (413, 49358), (518, 39353), (667, 30562), (826, 24679), (851, 23954), (1073, 18998), (1334, 15281), (1357, 15022), (1702, 11977), (1711, 11914), (2146, 9499), (2183, 9338), (2714, 7511), (3422, 5957), (4366, 4669)]