21495676760

素因数分解:

$2^3\times 5^1\times {\mathrm{431}}^1\times {\mathrm{773}}^1\times {\mathrm{1613}}^1$

素因数の和:2828

約数の個数: 64

約数和(自身を含む): 48570295680

約数和(自身を除く): 27074618920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 431, 773, 862, 1546, 1613, 1724, 2155, 3092, 3226, 3448, 3865, 4310, 6184, 6452, 7730, 8065, 8620, 12904, 15460, 16130, 17240, 30920, 32260, 64520, 333163, 666326, 695203, 1246849, 1332652, 1390406, 1665815, 2493698, 2665304, 2780812, 3331630, 3476015, 4987396, 5561624, 6234245, 6663260, 6952030, 9974792, 12468490, 13326520, 13904060, 24936980, 27808120, 49873960, 537391919, 1074783838, 2149567676, 2686959595, 4299135352, 5373919190, 10747838380, 21495676760]

約数ペア:

[(1, 21495676760), (2, 10747838380), (4, 5373919190), (5, 4299135352), (8, 2686959595), (10, 2149567676), (20, 1074783838), (40, 537391919), (431, 49873960), (773, 27808120), (862, 24936980), (1546, 13904060), (1613, 13326520), (1724, 12468490), (2155, 9974792), (3092, 6952030), (3226, 6663260), (3448, 6234245), (3865, 5561624), (4310, 4987396), (6184, 3476015), (6452, 3331630), (7730, 2780812), (8065, 2665304), (8620, 2493698), (12904, 1665815), (15460, 1390406), (16130, 1332652), (17240, 1246849), (30920, 695203), (32260, 666326), (64520, 333163)]