81581890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{757}}^1\times {\mathrm{829}}^1$

素因数の和:1606

約数の個数: 32

約数和(自身を含む): 158543280

約数和(自身を除く): 76961390

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 757, 829, 1514, 1658, 3785, 4145, 7570, 8290, 9841, 10777, 19682, 21554, 49205, 53885, 98410, 107770, 627553, 1255106, 3137765, 6275530, 8158189, 16316378, 40790945, 81581890]

約数ペア:

[(1, 81581890), (2, 40790945), (5, 16316378), (10, 8158189), (13, 6275530), (26, 3137765), (65, 1255106), (130, 627553), (757, 107770), (829, 98410), (1514, 53885), (1658, 49205), (3785, 21554), (4145, 19682), (7570, 10777), (8290, 9841)]