30905145

素因数分解:

$3^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{557}}^1$

素因数の和:711

約数の個数: 40

約数和(自身を含む): 55904904

約数和(自身を除く): 24999759

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 137, 405, 411, 557, 685, 1233, 1671, 2055, 2785, 3699, 5013, 6165, 8355, 11097, 15039, 18495, 25065, 45117, 55485, 75195, 76309, 225585, 228927, 381545, 686781, 1144635, 2060343, 3433905, 6181029, 10301715, 30905145]

約数ペア:

[(1, 30905145), (3, 10301715), (5, 6181029), (9, 3433905), (15, 2060343), (27, 1144635), (45, 686781), (81, 381545), (135, 228927), (137, 225585), (405, 76309), (411, 75195), (557, 55485), (685, 45117), (1233, 25065), (1671, 18495), (2055, 15039), (2785, 11097), (3699, 8355), (5013, 6165)]