68689360

素因数分解:

$2^4\times 5^1\times {\mathrm{787}}^1\times {\mathrm{1091}}^1$

素因数の和:1891

約数の個数: 40

約数和(自身を含む): 160052256

約数和(自身を除く): 91362896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 787, 1091, 1574, 2182, 3148, 3935, 4364, 5455, 6296, 7870, 8728, 10910, 12592, 15740, 17456, 21820, 31480, 43640, 62960, 87280, 858617, 1717234, 3434468, 4293085, 6868936, 8586170, 13737872, 17172340, 34344680, 68689360]

約数ペア:

[(1, 68689360), (2, 34344680), (4, 17172340), (5, 13737872), (8, 8586170), (10, 6868936), (16, 4293085), (20, 3434468), (40, 1717234), (80, 858617), (787, 87280), (1091, 62960), (1574, 43640), (2182, 31480), (3148, 21820), (3935, 17456), (4364, 15740), (5455, 12592), (6296, 10910), (7870, 8728)]