81051245

素因数分解:

$5^1\times {\mathrm{11}}^3\times {\mathrm{19}}^1\times {\mathrm{641}}^1$

素因数の和:698

約数の個数: 32

約数和(自身を含む): 112786560

約数和(自身を除く): 31735315

約数列:

[1, 5, 11, 19, 55, 95, 121, 209, 605, 641, 1045, 1331, 2299, 3205, 6655, 7051, 11495, 12179, 25289, 35255, 60895, 77561, 126445, 133969, 387805, 669845, 853171, 1473659, 4265855, 7368295, 16210249, 81051245]

約数ペア:

[(1, 81051245), (5, 16210249), (11, 7368295), (19, 4265855), (55, 1473659), (95, 853171), (121, 669845), (209, 387805), (605, 133969), (641, 126445), (1045, 77561), (1331, 60895), (2299, 35255), (3205, 25289), (6655, 12179), (7051, 11495)]