8931580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{487}}^1$

素因数の和:634

約数の個数: 48

約数和(自身を含む): 21643776

約数和(自身を除く): 12712196

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 131, 140, 262, 487, 524, 655, 917, 974, 1310, 1834, 1948, 2435, 2620, 3409, 3668, 4585, 4870, 6818, 9170, 9740, 13636, 17045, 18340, 34090, 63797, 68180, 127594, 255188, 318985, 446579, 637970, 893158, 1275940, 1786316, 2232895, 4465790, 8931580]

約数ペア:

[(1, 8931580), (2, 4465790), (4, 2232895), (5, 1786316), (7, 1275940), (10, 893158), (14, 637970), (20, 446579), (28, 318985), (35, 255188), (70, 127594), (131, 68180), (140, 63797), (262, 34090), (487, 18340), (524, 17045), (655, 13636), (917, 9740), (974, 9170), (1310, 6818), (1834, 4870), (1948, 4585), (2435, 3668), (2620, 3409)]