209968460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{807571}}^1$

素因数の和:807593

約数の個数: 24

約数和(自身を含む): 474852336

約数和(自身を除く): 264883876

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 807571, 1615142, 3230284, 4037855, 8075710, 10498423, 16151420, 20996846, 41993692, 52492115, 104984230, 209968460]

約数ペア:

[(1, 209968460), (2, 104984230), (4, 52492115), (5, 41993692), (10, 20996846), (13, 16151420), (20, 10498423), (26, 8075710), (52, 4037855), (65, 3230284), (130, 1615142), (260, 807571)]