681006820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2619257}}^1$

素因数の和:2619279

約数の個数: 24

約数和(自身を含む): 1540123704

約数和(自身を除く): 859116884

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 2619257, 5238514, 10477028, 13096285, 26192570, 34050341, 52385140, 68100682, 136201364, 170251705, 340503410, 681006820]

約数ペア:

[(1, 681006820), (2, 340503410), (4, 170251705), (5, 136201364), (10, 68100682), (13, 52385140), (20, 34050341), (26, 26192570), (52, 13096285), (65, 10477028), (130, 5238514), (260, 2619257)]