247996905

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{31019}}^1$

素因数の和:31081

約数の個数: 32

約数和(自身を含む): 437754240

約数和(自身を除く): 189757335

約数列:

[1, 3, 5, 13, 15, 39, 41, 65, 123, 195, 205, 533, 615, 1599, 2665, 7995, 31019, 93057, 155095, 403247, 465285, 1209741, 1271779, 2016235, 3815337, 6048705, 6358895, 16533127, 19076685, 49599381, 82665635, 247996905]

約数ペア:

[(1, 247996905), (3, 82665635), (5, 49599381), (13, 19076685), (15, 16533127), (39, 6358895), (41, 6048705), (65, 3815337), (123, 2016235), (195, 1271779), (205, 1209741), (533, 465285), (615, 403247), (1599, 155095), (2665, 93057), (7995, 31019)]