20171465

素因数分解:

$5^1\times {\mathrm{79}}^1\times {\mathrm{223}}^1\times {\mathrm{229}}^1$

素因数の和:536

約数の個数: 16

約数和(自身を含む): 24729600

約数和(自身を除く): 4558135

約数列:

[1, 5, 79, 223, 229, 395, 1115, 1145, 17617, 18091, 51067, 88085, 90455, 255335, 4034293, 20171465]

約数ペア:

[(1, 20171465), (5, 4034293), (79, 255335), (223, 90455), (229, 88085), (395, 51067), (1115, 18091), (1145, 17617)]