8269040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7951}}^1$

素因数の和:7977

約数の個数: 40

約数和(自身を含む): 20707008

約数和(自身を除く): 12437968

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 7951, 15902, 31804, 39755, 63608, 79510, 103363, 127216, 159020, 206726, 318040, 413452, 516815, 636080, 826904, 1033630, 1653808, 2067260, 4134520, 8269040]

約数ペア:

[(1, 8269040), (2, 4134520), (4, 2067260), (5, 1653808), (8, 1033630), (10, 826904), (13, 636080), (16, 516815), (20, 413452), (26, 318040), (40, 206726), (52, 159020), (65, 127216), (80, 103363), (104, 79510), (130, 63608), (208, 39755), (260, 31804), (520, 15902), (1040, 7951)]