71214520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{136951}}^1$

素因数の和:136975

約数の個数: 32

約数和(自身を含む): 172559520

約数和(自身を除く): 101345000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 136951, 273902, 547804, 684755, 1095608, 1369510, 1780363, 2739020, 3560726, 5478040, 7121452, 8901815, 14242904, 17803630, 35607260, 71214520]

約数ペア:

[(1, 71214520), (2, 35607260), (4, 17803630), (5, 14242904), (8, 8901815), (10, 7121452), (13, 5478040), (20, 3560726), (26, 2739020), (40, 1780363), (52, 1369510), (65, 1095608), (104, 684755), (130, 547804), (260, 273902), (520, 136951)]