20159455

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{1567}}^1$

素因数の和:1686

約数の個数: 16

約数和(自身を含む): 25288704

約数和(自身を除く): 5129249

約数列:

[1, 5, 31, 83, 155, 415, 1567, 2573, 7835, 12865, 48577, 130061, 242885, 650305, 4031891, 20159455]

約数ペア:

[(1, 20159455), (5, 4031891), (31, 650305), (83, 242885), (155, 130061), (415, 48577), (1567, 12865), (2573, 7835)]