40320085

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{10169}}^1$

素因数の和:10248

約数の個数: 16

約数和(自身を含む): 52965360

約数和(自身を除く): 12645275

約数列:

[1, 5, 13, 61, 65, 305, 793, 3965, 10169, 50845, 132197, 620309, 660985, 3101545, 8064017, 40320085]

約数ペア:

[(1, 40320085), (5, 8064017), (13, 3101545), (61, 660985), (65, 620309), (305, 132197), (793, 50845), (3965, 10169)]