31821640

素因数分解:

$2^3\times 5^1\times {\mathrm{241}}^1\times {\mathrm{3301}}^1$

素因数の和:3553

約数の個数: 32

約数和(自身を含む): 71917560

約数和(自身を除く): 40095920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 241, 482, 964, 1205, 1928, 2410, 3301, 4820, 6602, 9640, 13204, 16505, 26408, 33010, 66020, 132040, 795541, 1591082, 3182164, 3977705, 6364328, 7955410, 15910820, 31821640]

約数ペア:

[(1, 31821640), (2, 15910820), (4, 7955410), (5, 6364328), (8, 3977705), (10, 3182164), (20, 1591082), (40, 795541), (241, 132040), (482, 66020), (964, 33010), (1205, 26408), (1928, 16505), (2410, 13204), (3301, 9640), (4820, 6602)]