12478765

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{491}}^1$

素因数の和:549

約数の個数: 32

約数和(自身を含む): 17853696

約数和(自身を除く): 5374931

約数列:

[1, 5, 13, 17, 23, 65, 85, 115, 221, 299, 391, 491, 1105, 1495, 1955, 2455, 5083, 6383, 8347, 11293, 25415, 31915, 41735, 56465, 108511, 146809, 191981, 542555, 734045, 959905, 2495753, 12478765]

約数ペア:

[(1, 12478765), (5, 2495753), (13, 959905), (17, 734045), (23, 542555), (65, 191981), (85, 146809), (115, 108511), (221, 56465), (299, 41735), (391, 31915), (491, 25415), (1105, 11293), (1495, 8347), (1955, 6383), (2455, 5083)]