80221505

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{1123}}^1$

素因数の和:1305

約数の個数: 32

約数和(自身を含む): 119341824

約数和(自身を除く): 39120319

約数列:

[1, 5, 7, 13, 35, 65, 91, 157, 455, 785, 1099, 1123, 2041, 5495, 5615, 7861, 10205, 14287, 14599, 39305, 71435, 72995, 102193, 176311, 510965, 881555, 1234177, 2292043, 6170885, 11460215, 16044301, 80221505]

約数ペア:

[(1, 80221505), (5, 16044301), (7, 11460215), (13, 6170885), (35, 2292043), (65, 1234177), (91, 881555), (157, 510965), (455, 176311), (785, 102193), (1099, 72995), (1123, 71435), (2041, 39305), (5495, 14599), (5615, 14287), (7861, 10205)]