31190480

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{9067}}^1$

素因数の和:9123

約数の個数: 40

約数和(自身を含む): 74212512

約数和(自身を除く): 43022032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 9067, 18134, 36268, 45335, 72536, 90670, 145072, 181340, 362680, 389881, 725360, 779762, 1559524, 1949405, 3119048, 3898810, 6238096, 7797620, 15595240, 31190480]

約数ペア:

[(1, 31190480), (2, 15595240), (4, 7797620), (5, 6238096), (8, 3898810), (10, 3119048), (16, 1949405), (20, 1559524), (40, 779762), (43, 725360), (80, 389881), (86, 362680), (172, 181340), (215, 145072), (344, 90670), (430, 72536), (688, 45335), (860, 36268), (1720, 18134), (3440, 9067)]