64578160

素因数分解:

$2^4\times 5^1\times {\mathrm{313}}^1\times {\mathrm{2579}}^1$

素因数の和:2905

約数の個数: 40

約数和(自身を含む): 150682320

約数和(自身を除く): 86104160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 313, 626, 1252, 1565, 2504, 2579, 3130, 5008, 5158, 6260, 10316, 12520, 12895, 20632, 25040, 25790, 41264, 51580, 103160, 206320, 807227, 1614454, 3228908, 4036135, 6457816, 8072270, 12915632, 16144540, 32289080, 64578160]

約数ペア:

[(1, 64578160), (2, 32289080), (4, 16144540), (5, 12915632), (8, 8072270), (10, 6457816), (16, 4036135), (20, 3228908), (40, 1614454), (80, 807227), (313, 206320), (626, 103160), (1252, 51580), (1565, 41264), (2504, 25790), (2579, 25040), (3130, 20632), (5008, 12895), (5158, 12520), (6260, 10316)]