161420895

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{87491}}^1$

素因数の和:87543

約数の個数: 24

約数和(自身を含む): 286623792

約数和(自身を除く): 125202897

約数列:

[1, 3, 5, 9, 15, 41, 45, 123, 205, 369, 615, 1845, 87491, 262473, 437455, 787419, 1312365, 3587131, 3937095, 10761393, 17935655, 32284179, 53806965, 161420895]

約数ペア:

[(1, 161420895), (3, 53806965), (5, 32284179), (9, 17935655), (15, 10761393), (41, 3937095), (45, 3587131), (123, 1312365), (205, 787419), (369, 437455), (615, 262473), (1845, 87491)]