720239980

素因数分解:

$2^2\times 5^1\times {\mathrm{7321}}^1\times {\mathrm{4919}}^1$

素因数の和:12249

約数の個数: 24

約数和(自身を含む): 1513018080

約数和(自身を除く): 792778100

約数列:

[1, 2, 4, 5, 10, 20, 4919, 7321, 9838, 14642, 19676, 24595, 29284, 36605, 49190, 73210, 98380, 146420, 36011999, 72023998, 144047996, 180059995, 360119990, 720239980]

約数ペア:

[(1, 720239980), (2, 360119990), (4, 180059995), (5, 144047996), (10, 72023998), (20, 36011999), (4919, 146420), (7321, 98380), (9838, 73210), (14642, 49190), (19676, 36605), (24595, 29284)]