31125560

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{18979}}^1$

素因数の和:19031

約数の個数: 32

約数和(自身を含む): 71744400

約数和(自身を除く): 40618840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 18979, 37958, 75916, 94895, 151832, 189790, 379580, 759160, 778139, 1556278, 3112556, 3890695, 6225112, 7781390, 15562780, 31125560]

約数ペア:

[(1, 31125560), (2, 15562780), (4, 7781390), (5, 6225112), (8, 3890695), (10, 3112556), (20, 1556278), (40, 778139), (41, 759160), (82, 379580), (164, 189790), (205, 151832), (328, 94895), (410, 75916), (820, 37958), (1640, 18979)]