90878960

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{269}}^1$

素因数の和:426

約数の個数: 80

約数和(自身を含む): 219360960

約数和(自身を除く): 128482000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 103, 164, 205, 206, 269, 328, 410, 412, 515, 538, 656, 820, 824, 1030, 1076, 1345, 1640, 1648, 2060, 2152, 2690, 3280, 4120, 4223, 4304, 5380, 8240, 8446, 10760, 11029, 16892, 21115, 21520, 22058, 27707, 33784, 42230, 44116, 55145, 55414, 67568, 84460, 88232, 110290, 110828, 138535, 168920, 176464, 220580, 221656, 277070, 337840, 441160, 443312, 554140, 882320, 1108280, 1135987, 2216560, 2271974, 4543948, 5679935, 9087896, 11359870, 18175792, 22719740, 45439480, 90878960]

約数ペア:

[(1, 90878960), (2, 45439480), (4, 22719740), (5, 18175792), (8, 11359870), (10, 9087896), (16, 5679935), (20, 4543948), (40, 2271974), (41, 2216560), (80, 1135987), (82, 1108280), (103, 882320), (164, 554140), (205, 443312), (206, 441160), (269, 337840), (328, 277070), (410, 221656), (412, 220580), (515, 176464), (538, 168920), (656, 138535), (820, 110828), (824, 110290), (1030, 88232), (1076, 84460), (1345, 67568), (1640, 55414), (1648, 55145), (2060, 44116), (2152, 42230), (2690, 33784), (3280, 27707), (4120, 22058), (4223, 21520), (4304, 21115), (5380, 16892), (8240, 11029), (8446, 10760)]