21588760

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{503}}^1$

素因数の和:580

約数の個数: 64

約数和(自身を含む): 51710400

約数和(自身を除く): 30121640

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 37, 40, 58, 74, 116, 145, 148, 185, 232, 290, 296, 370, 503, 580, 740, 1006, 1073, 1160, 1480, 2012, 2146, 2515, 4024, 4292, 5030, 5365, 8584, 10060, 10730, 14587, 18611, 20120, 21460, 29174, 37222, 42920, 58348, 72935, 74444, 93055, 116696, 145870, 148888, 186110, 291740, 372220, 539719, 583480, 744440, 1079438, 2158876, 2698595, 4317752, 5397190, 10794380, 21588760]

約数ペア:

[(1, 21588760), (2, 10794380), (4, 5397190), (5, 4317752), (8, 2698595), (10, 2158876), (20, 1079438), (29, 744440), (37, 583480), (40, 539719), (58, 372220), (74, 291740), (116, 186110), (145, 148888), (148, 145870), (185, 116696), (232, 93055), (290, 74444), (296, 72935), (370, 58348), (503, 42920), (580, 37222), (740, 29174), (1006, 21460), (1073, 20120), (1160, 18611), (1480, 14587), (2012, 10730), (2146, 10060), (2515, 8584), (4024, 5365), (4292, 5030)]