20065665

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{227}}^1$

素因数の和:389

約数の個数: 32

約数和(自身を含む): 33094656

約数和(自身を除く): 13028991

約数列:

[1, 3, 5, 15, 71, 83, 213, 227, 249, 355, 415, 681, 1065, 1135, 1245, 3405, 5893, 16117, 17679, 18841, 29465, 48351, 56523, 80585, 88395, 94205, 241755, 282615, 1337711, 4013133, 6688555, 20065665]

約数ペア:

[(1, 20065665), (3, 6688555), (5, 4013133), (15, 1337711), (71, 282615), (83, 241755), (213, 94205), (227, 88395), (249, 80585), (355, 56523), (415, 48351), (681, 29465), (1065, 18841), (1135, 17679), (1245, 16117), (3405, 5893)]