81646140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1360769}}^1$

素因数の和:1360781

約数の個数: 24

約数和(自身を含む): 228609360

約数和(自身を除く): 146963220

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1360769, 2721538, 4082307, 5443076, 6803845, 8164614, 13607690, 16329228, 20411535, 27215380, 40823070, 81646140]

約数ペア:

[(1, 81646140), (2, 40823070), (3, 27215380), (4, 20411535), (5, 16329228), (6, 13607690), (10, 8164614), (12, 6803845), (15, 5443076), (20, 4082307), (30, 2721538), (60, 1360769)]