13379380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{421}}^1$

素因数の和:664

約数の個数: 48

約数和(自身を含む): 32328576

約数和(自身を除く): 18949196

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 227, 421, 454, 842, 908, 1135, 1589, 1684, 2105, 2270, 2947, 3178, 4210, 4540, 5894, 6356, 7945, 8420, 11788, 14735, 15890, 29470, 31780, 58940, 95567, 191134, 382268, 477835, 668969, 955670, 1337938, 1911340, 2675876, 3344845, 6689690, 13379380]

約数ペア:

[(1, 13379380), (2, 6689690), (4, 3344845), (5, 2675876), (7, 1911340), (10, 1337938), (14, 955670), (20, 668969), (28, 477835), (35, 382268), (70, 191134), (140, 95567), (227, 58940), (421, 31780), (454, 29470), (842, 15890), (908, 14735), (1135, 11788), (1589, 8420), (1684, 7945), (2105, 6356), (2270, 5894), (2947, 4540), (3178, 4210)]