80821565

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{509}}^1\times {\mathrm{2887}}^1$

素因数の和:3412

約数の個数: 16

約数和(自身を含む): 106047360

約数和(自身を除く): 25225795

約数列:

[1, 5, 11, 55, 509, 2545, 2887, 5599, 14435, 27995, 31757, 158785, 1469483, 7347415, 16164313, 80821565]

約数ペア:

[(1, 80821565), (5, 16164313), (11, 7347415), (55, 1469483), (509, 158785), (2545, 31757), (2887, 27995), (5599, 14435)]