64629280

素因数分解:

$2^5\times 5^1\times {\mathrm{403933}}^1$

素因数の和:403948

約数の個数: 24

約数和(自身を含む): 152687052

約数和(自身を除く): 88057772

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 403933, 807866, 1615732, 2019665, 3231464, 4039330, 6462928, 8078660, 12925856, 16157320, 32314640, 64629280]

約数ペア:

[(1, 64629280), (2, 32314640), (4, 16157320), (5, 12925856), (8, 8078660), (10, 6462928), (16, 4039330), (20, 3231464), (32, 2019665), (40, 1615732), (80, 807866), (160, 403933)]