64670780

素因数分解:

$2^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{9769}}^1$

素因数の和:10109

約数の個数: 24

約数和(自身を含む): 136232880

約数和(自身を除く): 71562100

約数列:

[1, 2, 4, 5, 10, 20, 331, 662, 1324, 1655, 3310, 6620, 9769, 19538, 39076, 48845, 97690, 195380, 3233539, 6467078, 12934156, 16167695, 32335390, 64670780]

約数ペア:

[(1, 64670780), (2, 32335390), (4, 16167695), (5, 12934156), (10, 6467078), (20, 3233539), (331, 195380), (662, 97690), (1324, 48845), (1655, 39076), (3310, 19538), (6620, 9769)]