16401080

素因数分解:

$2^3\times 5^1\times {\mathrm{521}}^1\times {\mathrm{787}}^1$

素因数の和:1319

約数の個数: 32

約数和(自身を含む): 37020240

約数和(自身を除く): 20619160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 521, 787, 1042, 1574, 2084, 2605, 3148, 3935, 4168, 5210, 6296, 7870, 10420, 15740, 20840, 31480, 410027, 820054, 1640108, 2050135, 3280216, 4100270, 8200540, 16401080]

約数ペア:

[(1, 16401080), (2, 8200540), (4, 4100270), (5, 3280216), (8, 2050135), (10, 1640108), (20, 820054), (40, 410027), (521, 31480), (787, 20840), (1042, 15740), (1574, 10420), (2084, 7870), (2605, 6296), (3148, 5210), (3935, 4168)]