220171905

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{85837}}^1$

素因数の和:85870

約数の個数: 32

約数和(自身を含む): 412022400

約数和(自身を除く): 191850495

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 95, 135, 171, 285, 513, 855, 2565, 85837, 257511, 429185, 772533, 1287555, 1630903, 2317599, 3862665, 4892709, 8154515, 11587995, 14678127, 24463545, 44034381, 73390635, 220171905]

約数ペア:

[(1, 220171905), (3, 73390635), (5, 44034381), (9, 24463545), (15, 14678127), (19, 11587995), (27, 8154515), (45, 4892709), (57, 3862665), (95, 2317599), (135, 1630903), (171, 1287555), (285, 772533), (513, 429185), (855, 257511), (2565, 85837)]