31555120

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{9173}}^1$

素因数の和:9229

約数の個数: 40

約数和(自身を含む): 75080016

約数和(自身を除く): 43524896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 9173, 18346, 36692, 45865, 73384, 91730, 146768, 183460, 366920, 394439, 733840, 788878, 1577756, 1972195, 3155512, 3944390, 6311024, 7888780, 15777560, 31555120]

約数ペア:

[(1, 31555120), (2, 15777560), (4, 7888780), (5, 6311024), (8, 3944390), (10, 3155512), (16, 1972195), (20, 1577756), (40, 788878), (43, 733840), (80, 394439), (86, 366920), (172, 183460), (215, 146768), (344, 91730), (430, 73384), (688, 45865), (860, 36692), (1720, 18346), (3440, 9173)]