128848840

素因数分解:

$2^3\times 5^1\times {\mathrm{877}}^1\times {\mathrm{3673}}^1$

素因数の和:4561

約数の個数: 32

約数和(自身を含む): 290319480

約数和(自身を除く): 161470640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 877, 1754, 3508, 3673, 4385, 7016, 7346, 8770, 14692, 17540, 18365, 29384, 35080, 36730, 73460, 146920, 3221221, 6442442, 12884884, 16106105, 25769768, 32212210, 64424420, 128848840]

約数ペア:

[(1, 128848840), (2, 64424420), (4, 32212210), (5, 25769768), (8, 16106105), (10, 12884884), (20, 6442442), (40, 3221221), (877, 146920), (1754, 73460), (3508, 36730), (3673, 35080), (4385, 29384), (7016, 18365), (7346, 17540), (8770, 14692)]