28039620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{661}}^1$

素因数の和:781

約数の個数: 96

約数和(自身を含む): 90752256

約数和(自身を除く): 62712636

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 101, 105, 140, 202, 210, 303, 404, 420, 505, 606, 661, 707, 1010, 1212, 1322, 1414, 1515, 1983, 2020, 2121, 2644, 2828, 3030, 3305, 3535, 3966, 4242, 4627, 6060, 6610, 7070, 7932, 8484, 9254, 9915, 10605, 13220, 13881, 14140, 18508, 19830, 21210, 23135, 27762, 39660, 42420, 46270, 55524, 66761, 69405, 92540, 133522, 138810, 200283, 267044, 277620, 333805, 400566, 467327, 667610, 801132, 934654, 1001415, 1335220, 1401981, 1869308, 2002830, 2336635, 2803962, 4005660, 4673270, 5607924, 7009905, 9346540, 14019810, 28039620]

約数ペア:

[(1, 28039620), (2, 14019810), (3, 9346540), (4, 7009905), (5, 5607924), (6, 4673270), (7, 4005660), (10, 2803962), (12, 2336635), (14, 2002830), (15, 1869308), (20, 1401981), (21, 1335220), (28, 1001415), (30, 934654), (35, 801132), (42, 667610), (60, 467327), (70, 400566), (84, 333805), (101, 277620), (105, 267044), (140, 200283), (202, 138810), (210, 133522), (303, 92540), (404, 69405), (420, 66761), (505, 55524), (606, 46270), (661, 42420), (707, 39660), (1010, 27762), (1212, 23135), (1322, 21210), (1414, 19830), (1515, 18508), (1983, 14140), (2020, 13881), (2121, 13220), (2644, 10605), (2828, 9915), (3030, 9254), (3305, 8484), (3535, 7932), (3966, 7070), (4242, 6610), (4627, 6060)]