129173840

素因数分解:

$2^4\times 5^1\times {\mathrm{863}}^1\times {\mathrm{1871}}^1$

素因数の和:2747

約数の個数: 40

約数和(自身を含む): 300837888

約数和(自身を除く): 171664048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 863, 1726, 1871, 3452, 3742, 4315, 6904, 7484, 8630, 9355, 13808, 14968, 17260, 18710, 29936, 34520, 37420, 69040, 74840, 149680, 1614673, 3229346, 6458692, 8073365, 12917384, 16146730, 25834768, 32293460, 64586920, 129173840]

約数ペア:

[(1, 129173840), (2, 64586920), (4, 32293460), (5, 25834768), (8, 16146730), (10, 12917384), (16, 8073365), (20, 6458692), (40, 3229346), (80, 1614673), (863, 149680), (1726, 74840), (1871, 69040), (3452, 37420), (3742, 34520), (4315, 29936), (6904, 18710), (7484, 17260), (8630, 14968), (9355, 13808)]