80209815

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{1789}}^1$

素因数の和:1872

約数の個数: 48

約数和(自身を含む): 151820640

約数和(自身を除く): 71610825

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 61, 105, 147, 183, 245, 305, 427, 735, 915, 1281, 1789, 2135, 2989, 5367, 6405, 8945, 8967, 12523, 14945, 26835, 37569, 44835, 62615, 87661, 109129, 187845, 262983, 327387, 438305, 545645, 763903, 1314915, 1636935, 2291709, 3819515, 5347321, 11458545, 16041963, 26736605, 80209815]

約数ペア:

[(1, 80209815), (3, 26736605), (5, 16041963), (7, 11458545), (15, 5347321), (21, 3819515), (35, 2291709), (49, 1636935), (61, 1314915), (105, 763903), (147, 545645), (183, 438305), (245, 327387), (305, 262983), (427, 187845), (735, 109129), (915, 87661), (1281, 62615), (1789, 44835), (2135, 37569), (2989, 26835), (5367, 14945), (6405, 12523), (8945, 8967)]