201718205

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1\times {\mathrm{241}}^1$

素因数の和:501

約数の個数: 32

約数和(自身を含む): 266703360

約数和(自身を除く): 64985155

約数列:

[1, 5, 13, 65, 79, 163, 241, 395, 815, 1027, 1205, 2119, 3133, 5135, 10595, 12877, 15665, 19039, 39283, 64385, 95195, 167401, 196415, 247507, 510679, 837005, 1237535, 2553395, 3103357, 15516785, 40343641, 201718205]

約数ペア:

[(1, 201718205), (5, 40343641), (13, 15516785), (65, 3103357), (79, 2553395), (163, 1237535), (241, 837005), (395, 510679), (815, 247507), (1027, 196415), (1205, 167401), (2119, 95195), (3133, 64385), (5135, 39283), (10595, 19039), (12877, 15665)]