161630360

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{31817}}^1$

素因数の和:31955

約数の個数: 32

約数和(自身を含む): 366543360

約数和(自身を除く): 204913000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 31817, 63634, 127268, 159085, 254536, 318170, 636340, 1272680, 4040759, 8081518, 16163036, 20203795, 32326072, 40407590, 80815180, 161630360]

約数ペア:

[(1, 161630360), (2, 80815180), (4, 40407590), (5, 32326072), (8, 20203795), (10, 16163036), (20, 8081518), (40, 4040759), (127, 1272680), (254, 636340), (508, 318170), (635, 254536), (1016, 159085), (1270, 127268), (2540, 63634), (5080, 31817)]