90707575

素因数分解:

$5^2\times 7^2\times {\mathrm{74047}}^1$

素因数の和:74071

約数の個数: 18

約数和(自身を含む): 130842816

約数和(自身を除く): 40135241

約数列:

[1, 5, 7, 25, 35, 49, 175, 245, 1225, 74047, 370235, 518329, 1851175, 2591645, 3628303, 12958225, 18141515, 90707575]

約数ペア:

[(1, 90707575), (5, 18141515), (7, 12958225), (25, 3628303), (35, 2591645), (49, 1851175), (175, 518329), (245, 370235), (1225, 74047)]