85719740

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{227}}^1\times {\mathrm{239}}^1$

素因数の和:554

約数の個数: 48

約数和(自身を含む): 183859200

約数和(自身を除く): 98139460

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 227, 239, 316, 395, 454, 478, 790, 908, 956, 1135, 1195, 1580, 2270, 2390, 4540, 4780, 17933, 18881, 35866, 37762, 54253, 71732, 75524, 89665, 94405, 108506, 179330, 188810, 217012, 271265, 358660, 377620, 542530, 1085060, 4285987, 8571974, 17143948, 21429935, 42859870, 85719740]

約数ペア:

[(1, 85719740), (2, 42859870), (4, 21429935), (5, 17143948), (10, 8571974), (20, 4285987), (79, 1085060), (158, 542530), (227, 377620), (239, 358660), (316, 271265), (395, 217012), (454, 188810), (478, 179330), (790, 108506), (908, 94405), (956, 89665), (1135, 75524), (1195, 71732), (1580, 54253), (2270, 37762), (2390, 35866), (4540, 18881), (4780, 17933)]