64604840

素因数分解:

$2^3\times 5^1\times {\mathrm{1615121}}^1$

素因数の和:1615132

約数の個数: 16

約数和(自身を含む): 145360980

約数和(自身を除く): 80756140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1615121, 3230242, 6460484, 8075605, 12920968, 16151210, 32302420, 64604840]

約数ペア:

[(1, 64604840), (2, 32302420), (4, 16151210), (5, 12920968), (8, 8075605), (10, 6460484), (20, 3230242), (40, 1615121)]