408582005

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{21023}}^1$

素因数の和:21077

約数の個数: 24

約数和(自身を含む): 554024448

約数和(自身を除く): 145442443

約数列:

[1, 5, 13, 23, 65, 115, 169, 299, 845, 1495, 3887, 19435, 21023, 105115, 273299, 483529, 1366495, 2417645, 3552887, 6285877, 17764435, 31429385, 81716401, 408582005]

約数ペア:

[(1, 408582005), (5, 81716401), (13, 31429385), (23, 17764435), (65, 6285877), (115, 3552887), (169, 2417645), (299, 1366495), (845, 483529), (1495, 273299), (3887, 105115), (19435, 21023)]