90171128

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{2521}}^1$

素因数の和:2807

約数の個数: 32

約数和(自身を含む): 179768160

約数和(自身を除く): 89597032

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 263, 526, 1052, 2104, 2521, 4471, 5042, 8942, 10084, 17884, 20168, 35768, 42857, 85714, 171428, 342856, 663023, 1326046, 2652092, 5304184, 11271391, 22542782, 45085564, 90171128]

約数ペア:

[(1, 90171128), (2, 45085564), (4, 22542782), (8, 11271391), (17, 5304184), (34, 2652092), (68, 1326046), (136, 663023), (263, 342856), (526, 171428), (1052, 85714), (2104, 42857), (2521, 35768), (4471, 20168), (5042, 17884), (8942, 10084)]