408045320

素因数分解:

$2^3\times 5^1\times {\mathrm{1283}}^1\times {\mathrm{7951}}^1$

素因数の和:9245

約数の個数: 32

約数和(自身を含む): 918933120

約数和(自身を除く): 510887800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1283, 2566, 5132, 6415, 7951, 10264, 12830, 15902, 25660, 31804, 39755, 51320, 63608, 79510, 159020, 318040, 10201133, 20402266, 40804532, 51005665, 81609064, 102011330, 204022660, 408045320]

約数ペア:

[(1, 408045320), (2, 204022660), (4, 102011330), (5, 81609064), (8, 51005665), (10, 40804532), (20, 20402266), (40, 10201133), (1283, 318040), (2566, 159020), (5132, 79510), (6415, 63608), (7951, 51320), (10264, 39755), (12830, 31804), (15902, 25660)]