64601780

素因数分解:

$2^2\times 5^1\times {\mathrm{631}}^1\times {\mathrm{5119}}^1$

素因数の和:5759

約数の個数: 24

約数和(自身を含む): 135905280

約数和(自身を除く): 71303500

約数列:

[1, 2, 4, 5, 10, 20, 631, 1262, 2524, 3155, 5119, 6310, 10238, 12620, 20476, 25595, 51190, 102380, 3230089, 6460178, 12920356, 16150445, 32300890, 64601780]

約数ペア:

[(1, 64601780), (2, 32300890), (4, 16150445), (5, 12920356), (10, 6460178), (20, 3230089), (631, 102380), (1262, 51190), (2524, 25595), (3155, 20476), (5119, 12620), (6310, 10238)]