205320560

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{677}}^1$

素因数の和:930

約数の個数: 80

約数和(自身を含む): 508467456

約数和(自身を除く): 303146896

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 223, 272, 340, 446, 677, 680, 892, 1115, 1354, 1360, 1784, 2230, 2708, 3385, 3568, 3791, 4460, 5416, 6770, 7582, 8920, 10832, 11509, 13540, 15164, 17840, 18955, 23018, 27080, 30328, 37910, 46036, 54160, 57545, 60656, 75820, 92072, 115090, 150971, 151640, 184144, 230180, 301942, 303280, 460360, 603884, 754855, 920720, 1207768, 1509710, 2415536, 2566507, 3019420, 5133014, 6038840, 10266028, 12077680, 12832535, 20532056, 25665070, 41064112, 51330140, 102660280, 205320560]

約数ペア:

[(1, 205320560), (2, 102660280), (4, 51330140), (5, 41064112), (8, 25665070), (10, 20532056), (16, 12832535), (17, 12077680), (20, 10266028), (34, 6038840), (40, 5133014), (68, 3019420), (80, 2566507), (85, 2415536), (136, 1509710), (170, 1207768), (223, 920720), (272, 754855), (340, 603884), (446, 460360), (677, 303280), (680, 301942), (892, 230180), (1115, 184144), (1354, 151640), (1360, 150971), (1784, 115090), (2230, 92072), (2708, 75820), (3385, 60656), (3568, 57545), (3791, 54160), (4460, 46036), (5416, 37910), (6770, 30328), (7582, 27080), (8920, 23018), (10832, 18955), (11509, 17840), (13540, 15164)]