313639820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1206307}}^1$

素因数の和:1206329

約数の個数: 24

約数和(自身を含む): 709309104

約数和(自身を除く): 395669284

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1206307, 2412614, 4825228, 6031535, 12063070, 15681991, 24126140, 31363982, 62727964, 78409955, 156819910, 313639820]

約数ペア:

[(1, 313639820), (2, 156819910), (4, 78409955), (5, 62727964), (10, 31363982), (13, 24126140), (20, 15681991), (26, 12063070), (52, 6031535), (65, 4825228), (130, 2412614), (260, 1206307)]