71472880

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{263}}^1$

素因数の和:398

約数の個数: 80

約数和(自身を含む): 172846080

約数和(自身を除く): 101373200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 79, 80, 86, 158, 172, 215, 263, 316, 344, 395, 430, 526, 632, 688, 790, 860, 1052, 1264, 1315, 1580, 1720, 2104, 2630, 3160, 3397, 3440, 4208, 5260, 6320, 6794, 10520, 11309, 13588, 16985, 20777, 21040, 22618, 27176, 33970, 41554, 45236, 54352, 56545, 67940, 83108, 90472, 103885, 113090, 135880, 166216, 180944, 207770, 226180, 271760, 332432, 415540, 452360, 831080, 893411, 904720, 1662160, 1786822, 3573644, 4467055, 7147288, 8934110, 14294576, 17868220, 35736440, 71472880]

約数ペア:

[(1, 71472880), (2, 35736440), (4, 17868220), (5, 14294576), (8, 8934110), (10, 7147288), (16, 4467055), (20, 3573644), (40, 1786822), (43, 1662160), (79, 904720), (80, 893411), (86, 831080), (158, 452360), (172, 415540), (215, 332432), (263, 271760), (316, 226180), (344, 207770), (395, 180944), (430, 166216), (526, 135880), (632, 113090), (688, 103885), (790, 90472), (860, 83108), (1052, 67940), (1264, 56545), (1315, 54352), (1580, 45236), (1720, 41554), (2104, 33970), (2630, 27176), (3160, 22618), (3397, 21040), (3440, 20777), (4208, 16985), (5260, 13588), (6320, 11309), (6794, 10520)]