64794320

素因数分解:

$2^4\times 5^1\times {\mathrm{809929}}^1$

素因数の和:809942

約数の個数: 20

約数和(自身を含む): 150646980

約数和(自身を除く): 85852660

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 809929, 1619858, 3239716, 4049645, 6479432, 8099290, 12958864, 16198580, 32397160, 64794320]

約数ペア:

[(1, 64794320), (2, 32397160), (4, 16198580), (5, 12958864), (8, 8099290), (10, 6479432), (16, 4049645), (20, 3239716), (40, 1619858), (80, 809929)]