64001960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{145459}}^1$

素因数の和:145481

約数の個数: 32

約数和(自身を含む): 157096800

約数和(自身を除く): 93094840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 145459, 290918, 581836, 727295, 1163672, 1454590, 1600049, 2909180, 3200098, 5818360, 6400196, 8000245, 12800392, 16000490, 32000980, 64001960]

約数ペア:

[(1, 64001960), (2, 32000980), (4, 16000490), (5, 12800392), (8, 8000245), (10, 6400196), (11, 5818360), (20, 3200098), (22, 2909180), (40, 1600049), (44, 1454590), (55, 1163672), (88, 727295), (110, 581836), (220, 290918), (440, 145459)]