868465

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{431}}^1$

素因数の和:480

約数の個数: 16

約数和(自身を含む): 1161216

約数和(自身を除く): 292751

約数列:

[1, 5, 13, 31, 65, 155, 403, 431, 2015, 2155, 5603, 13361, 28015, 66805, 173693, 868465]

約数ペア:

[(1, 868465), (5, 173693), (13, 66805), (31, 28015), (65, 13361), (155, 5603), (403, 2155), (431, 2015)]