168487640

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{113843}}^1$

素因数の和:113891

約数の個数: 32

約数和(自身を含む): 389346480

約数和(自身を除く): 220858840

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 113843, 227686, 455372, 569215, 910744, 1138430, 2276860, 4212191, 4553720, 8424382, 16848764, 21060955, 33697528, 42121910, 84243820, 168487640]

約数ペア:

[(1, 168487640), (2, 84243820), (4, 42121910), (5, 33697528), (8, 21060955), (10, 16848764), (20, 8424382), (37, 4553720), (40, 4212191), (74, 2276860), (148, 1138430), (185, 910744), (296, 569215), (370, 455372), (740, 227686), (1480, 113843)]