78819910

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{46639}}^1$

素因数の和:46672

約数の個数: 24

約数和(自身を含む): 153632160

約数和(自身を除く): 74812250

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 46639, 93278, 233195, 466390, 606307, 1212614, 3031535, 6063070, 7881991, 15763982, 39409955, 78819910]

約数ペア:

[(1, 78819910), (2, 39409955), (5, 15763982), (10, 7881991), (13, 6063070), (26, 3031535), (65, 1212614), (130, 606307), (169, 466390), (338, 233195), (845, 93278), (1690, 46639)]