68445999740

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2477}}^1\times {\mathrm{17489}}^1$

素因数の和:20054

約数の個数: 48

約数和(自身を含む): 145623139200

約数和(自身を除く): 77177139460

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 2477, 4954, 9908, 12385, 17489, 24770, 34978, 49540, 69956, 87445, 174890, 195683, 349780, 391366, 782732, 978415, 1381631, 1956830, 2763262, 3913660, 5526524, 6908155, 13816310, 27632620, 43320253, 86640506, 173281012, 216601265, 433202530, 866405060, 3422299987, 6844599974, 13689199948, 17111499935, 34222999870, 68445999740]

約数ペア:

[(1, 68445999740), (2, 34222999870), (4, 17111499935), (5, 13689199948), (10, 6844599974), (20, 3422299987), (79, 866405060), (158, 433202530), (316, 216601265), (395, 173281012), (790, 86640506), (1580, 43320253), (2477, 27632620), (4954, 13816310), (9908, 6908155), (12385, 5526524), (17489, 3913660), (24770, 2763262), (34978, 1956830), (49540, 1381631), (69956, 978415), (87445, 782732), (174890, 391366), (195683, 349780)]