31518140

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{547}}^1$

素因数の和:666

約数の個数: 48

約数和(自身を含む): 68863872

約数和(自身を除く): 37345732

約数列:

[1, 2, 4, 5, 10, 20, 43, 67, 86, 134, 172, 215, 268, 335, 430, 547, 670, 860, 1094, 1340, 2188, 2735, 2881, 5470, 5762, 10940, 11524, 14405, 23521, 28810, 36649, 47042, 57620, 73298, 94084, 117605, 146596, 183245, 235210, 366490, 470420, 732980, 1575907, 3151814, 6303628, 7879535, 15759070, 31518140]

約数ペア:

[(1, 31518140), (2, 15759070), (4, 7879535), (5, 6303628), (10, 3151814), (20, 1575907), (43, 732980), (67, 470420), (86, 366490), (134, 235210), (172, 183245), (215, 146596), (268, 117605), (335, 94084), (430, 73298), (547, 57620), (670, 47042), (860, 36649), (1094, 28810), (1340, 23521), (2188, 14405), (2735, 11524), (2881, 10940), (5470, 5762)]