64978960

素因数分解:

$2^4\times 5^1\times {\mathrm{107}}^1\times {\mathrm{7591}}^1$

素因数の和:7711

約数の個数: 40

約数和(自身を含む): 152508096

約数和(自身を除く): 87529136

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 107, 214, 428, 535, 856, 1070, 1712, 2140, 4280, 7591, 8560, 15182, 30364, 37955, 60728, 75910, 121456, 151820, 303640, 607280, 812237, 1624474, 3248948, 4061185, 6497896, 8122370, 12995792, 16244740, 32489480, 64978960]

約数ペア:

[(1, 64978960), (2, 32489480), (4, 16244740), (5, 12995792), (8, 8122370), (10, 6497896), (16, 4061185), (20, 3248948), (40, 1624474), (80, 812237), (107, 607280), (214, 303640), (428, 151820), (535, 121456), (856, 75910), (1070, 60728), (1712, 37955), (2140, 30364), (4280, 15182), (7591, 8560)]