181320385

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{569}}^1$

素因数の和:777

約数の個数: 32

約数和(自身を含む): 242300160

約数和(自身を除く): 60979775

約数列:

[1, 5, 17, 23, 85, 115, 163, 391, 569, 815, 1955, 2771, 2845, 3749, 9673, 13087, 13855, 18745, 48365, 63733, 65435, 92747, 222479, 318665, 463735, 1112395, 1576699, 2133181, 7883495, 10665905, 36264077, 181320385]

約数ペア:

[(1, 181320385), (5, 36264077), (17, 10665905), (23, 7883495), (85, 2133181), (115, 1576699), (163, 1112395), (391, 463735), (569, 318665), (815, 222479), (1955, 92747), (2771, 65435), (2845, 63733), (3749, 48365), (9673, 18745), (13087, 13855)]