12742720

素因数分解:

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

素因数の和:39838

約数の個数: 28

約数和(自身を含む): 30344364

約数和(自身を除く): 17601644

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 39821, 79642, 159284, 199105, 318568, 398210, 637136, 796420, 1274272, 1592840, 2548544, 3185680, 6371360, 12742720]

約数ペア:

[(1, 12742720), (2, 6371360), (4, 3185680), (5, 2548544), (8, 1592840), (10, 1274272), (16, 796420), (20, 637136), (32, 398210), (40, 318568), (64, 199105), (80, 159284), (160, 79642), (320, 39821)]