1206985

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{599}}^1$

素因数の和:648

約数の個数: 16

約数和(自身を含む): 1612800

約数和(自身を除く): 405815

約数列:

[1, 5, 13, 31, 65, 155, 403, 599, 2015, 2995, 7787, 18569, 38935, 92845, 241397, 1206985]

約数ペア:

[(1, 1206985), (5, 241397), (13, 92845), (31, 38935), (65, 18569), (155, 7787), (403, 2995), (599, 2015)]