40547845

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{20123}}^1$

素因数の和:20172

約数の個数: 16

約数和(自身を含む): 54093312

約数和(自身を除く): 13545467

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 20123, 100615, 261599, 623813, 1307995, 3119065, 8109569, 40547845]

約数ペア:

[(1, 40547845), (5, 8109569), (13, 3119065), (31, 1307995), (65, 623813), (155, 261599), (403, 100615), (2015, 20123)]