81020555

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{12379}}^1$

素因数の和:12419

約数の個数: 32

約数和(自身を含む): 128355840

約数和(自身を除く): 47335285

約数列:

[1, 5, 7, 11, 17, 35, 55, 77, 85, 119, 187, 385, 595, 935, 1309, 6545, 12379, 61895, 86653, 136169, 210443, 433265, 680845, 953183, 1052215, 1473101, 2314873, 4765915, 7365505, 11574365, 16204111, 81020555]

約数ペア:

[(1, 81020555), (5, 16204111), (7, 11574365), (11, 7365505), (17, 4765915), (35, 2314873), (55, 1473101), (77, 1052215), (85, 953183), (119, 680845), (187, 433265), (385, 210443), (595, 136169), (935, 86653), (1309, 61895), (6545, 12379)]