5181640

素因数分解:

$2^3\times 5^1\times {\mathrm{281}}^1\times {\mathrm{461}}^1$

素因数の和:753

約数の個数: 32

約数和(自身を含む): 11725560

約数和(自身を除く): 6543920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 281, 461, 562, 922, 1124, 1405, 1844, 2248, 2305, 2810, 3688, 4610, 5620, 9220, 11240, 18440, 129541, 259082, 518164, 647705, 1036328, 1295410, 2590820, 5181640]

約数ペア:

[(1, 5181640), (2, 2590820), (4, 1295410), (5, 1036328), (8, 647705), (10, 518164), (20, 259082), (40, 129541), (281, 18440), (461, 11240), (562, 9220), (922, 5620), (1124, 4610), (1405, 3688), (1844, 2810), (2248, 2305)]