42640065

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{72889}}^1$

素因数の和:72913

約数の個数: 24

約数和(自身を含む): 79595880

約数和(自身を除く): 36955815

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 72889, 218667, 364445, 656001, 947557, 1093335, 2842671, 3280005, 4737785, 8528013, 14213355, 42640065]

約数ペア:

[(1, 42640065), (3, 14213355), (5, 8528013), (9, 4737785), (13, 3280005), (15, 2842671), (39, 1093335), (45, 947557), (65, 656001), (117, 364445), (195, 218667), (585, 72889)]