80627540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{2837}}^1$

素因数の和:2889

約数の個数: 72

約数和(自身を含む): 203825160

約数和(自身を除く): 123197620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 49, 58, 70, 98, 116, 140, 145, 196, 203, 245, 290, 406, 490, 580, 812, 980, 1015, 1421, 2030, 2837, 2842, 4060, 5674, 5684, 7105, 11348, 14185, 14210, 19859, 28370, 28420, 39718, 56740, 79436, 82273, 99295, 139013, 164546, 198590, 278026, 329092, 397180, 411365, 556052, 575911, 695065, 822730, 1151822, 1390130, 1645460, 2303644, 2780260, 2879555, 4031377, 5759110, 8062754, 11518220, 16125508, 20156885, 40313770, 80627540]

約数ペア:

[(1, 80627540), (2, 40313770), (4, 20156885), (5, 16125508), (7, 11518220), (10, 8062754), (14, 5759110), (20, 4031377), (28, 2879555), (29, 2780260), (35, 2303644), (49, 1645460), (58, 1390130), (70, 1151822), (98, 822730), (116, 695065), (140, 575911), (145, 556052), (196, 411365), (203, 397180), (245, 329092), (290, 278026), (406, 198590), (490, 164546), (580, 139013), (812, 99295), (980, 82273), (1015, 79436), (1421, 56740), (2030, 39718), (2837, 28420), (2842, 28370), (4060, 19859), (5674, 14210), (5684, 14185), (7105, 11348)]