245264840

素因数分解:

$2^3\times 5^1\times {\mathrm{6131621}}^1$

素因数の和:6131632

約数の個数: 16

約数和(自身を含む): 551845980

約数和(自身を除く): 306581140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 6131621, 12263242, 24526484, 30658105, 49052968, 61316210, 122632420, 245264840]

約数ペア:

[(1, 245264840), (2, 122632420), (4, 61316210), (5, 49052968), (8, 30658105), (10, 24526484), (20, 12263242), (40, 6131621)]