20047895

素因数分解:

$5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{137}}^1$

素因数の和:299

約数の個数: 32

約数和(自身を含む): 28695168

約数和(自身を除く): 8647273

約数列:

[1, 5, 7, 35, 37, 113, 137, 185, 259, 565, 685, 791, 959, 1295, 3955, 4181, 4795, 5069, 15481, 20905, 25345, 29267, 35483, 77405, 108367, 146335, 177415, 541835, 572797, 2863985, 4009579, 20047895]

約数ペア:

[(1, 20047895), (5, 4009579), (7, 2863985), (35, 572797), (37, 541835), (113, 177415), (137, 146335), (185, 108367), (259, 77405), (565, 35483), (685, 29267), (791, 25345), (959, 20905), (1295, 15481), (3955, 5069), (4181, 4795)]