8045488420

素因数分解:

$2^2\times 5^1\times {\mathrm{1259}}^1\times {\mathrm{319519}}^1$

素因数の和:320787

約数の個数: 24

約数和(自身を含む): 16908998400

約数和(自身を除く): 8863509980

約数列:

[1, 2, 4, 5, 10, 20, 1259, 2518, 5036, 6295, 12590, 25180, 319519, 639038, 1278076, 1597595, 3195190, 6390380, 402274421, 804548842, 1609097684, 2011372105, 4022744210, 8045488420]

約数ペア:

[(1, 8045488420), (2, 4022744210), (4, 2011372105), (5, 1609097684), (10, 804548842), (20, 402274421), (1259, 6390380), (2518, 3195190), (5036, 1597595), (6295, 1278076), (12590, 639038), (25180, 319519)]