81216808

素因数分解:

$2^3\times {\mathrm{331}}^1\times {\mathrm{30671}}^1$

素因数の和:31008

約数の個数: 16

約数和(自身を含む): 152746560

約数和(自身を除く): 71529752

約数列:

[1, 2, 4, 8, 331, 662, 1324, 2648, 30671, 61342, 122684, 245368, 10152101, 20304202, 40608404, 81216808]

約数ペア:

[(1, 81216808), (2, 40608404), (4, 20304202), (8, 10152101), (331, 245368), (662, 122684), (1324, 61342), (2648, 30671)]