156798395

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^3\times {\mathrm{491}}^1$

素因数の和:560

約数の個数: 32

約数和(自身を含む): 215732160

約数和(自身を除く): 58933765

約数列:

[1, 5, 13, 17, 65, 85, 221, 289, 491, 1105, 1445, 2455, 3757, 4913, 6383, 8347, 18785, 24565, 31915, 41735, 63869, 108511, 141899, 319345, 542555, 709495, 1844687, 2412283, 9223435, 12061415, 31359679, 156798395]

約数ペア:

[(1, 156798395), (5, 31359679), (13, 12061415), (17, 9223435), (65, 2412283), (85, 1844687), (221, 709495), (289, 542555), (491, 319345), (1105, 141899), (1445, 108511), (2455, 63869), (3757, 41735), (4913, 31915), (6383, 24565), (8347, 18785)]