20256005

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{4783}}^1$

素因数の和:4817

約数の個数: 24

約数和(自身を含む): 30541056

約数和(自身を除く): 10285051

約数列:

[1, 5, 7, 11, 35, 55, 77, 121, 385, 605, 847, 4235, 4783, 23915, 33481, 52613, 167405, 263065, 368291, 578743, 1841455, 2893715, 4051201, 20256005]

約数ペア:

[(1, 20256005), (5, 4051201), (7, 2893715), (11, 1841455), (35, 578743), (55, 368291), (77, 263065), (121, 167405), (385, 52613), (605, 33481), (847, 23915), (4235, 4783)]