17860780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{1129}}^1$

素因数の和:1258

約数の個数: 48

約数和(自身を含む): 43283520

約数和(自身を除く): 25422740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 113, 140, 226, 452, 565, 791, 1129, 1130, 1582, 2258, 2260, 3164, 3955, 4516, 5645, 7903, 7910, 11290, 15806, 15820, 22580, 31612, 39515, 79030, 127577, 158060, 255154, 510308, 637885, 893039, 1275770, 1786078, 2551540, 3572156, 4465195, 8930390, 17860780]

約数ペア:

[(1, 17860780), (2, 8930390), (4, 4465195), (5, 3572156), (7, 2551540), (10, 1786078), (14, 1275770), (20, 893039), (28, 637885), (35, 510308), (70, 255154), (113, 158060), (140, 127577), (226, 79030), (452, 39515), (565, 31612), (791, 22580), (1129, 15820), (1130, 15806), (1582, 11290), (2258, 7910), (2260, 7903), (3164, 5645), (3955, 4516)]