1287014720

素因数分解:

$2^6\times 5^1\times {\mathrm{101}}^1\times {\mathrm{39821}}^1$

素因数の和:39939

約数の個数: 56

約数和(自身を含む): 3095125128

約数和(自身を除く): 1808110408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 101, 160, 202, 320, 404, 505, 808, 1010, 1616, 2020, 3232, 4040, 6464, 8080, 16160, 32320, 39821, 79642, 159284, 199105, 318568, 398210, 637136, 796420, 1274272, 1592840, 2548544, 3185680, 4021921, 6371360, 8043842, 12742720, 16087684, 20109605, 32175368, 40219210, 64350736, 80438420, 128701472, 160876840, 257402944, 321753680, 643507360, 1287014720]

約数ペア:

[(1, 1287014720), (2, 643507360), (4, 321753680), (5, 257402944), (8, 160876840), (10, 128701472), (16, 80438420), (20, 64350736), (32, 40219210), (40, 32175368), (64, 20109605), (80, 16087684), (101, 12742720), (160, 8043842), (202, 6371360), (320, 4021921), (404, 3185680), (505, 2548544), (808, 1592840), (1010, 1274272), (1616, 796420), (2020, 637136), (3232, 398210), (4040, 318568), (6464, 199105), (8080, 159284), (16160, 79642), (32320, 39821)]