61518640

素因数分解:

$2^4\times 5^1\times {\mathrm{768983}}^1$

素因数の和:768996

約数の個数: 20

約数和(自身を含む): 143031024

約数和(自身を除く): 81512384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 768983, 1537966, 3075932, 3844915, 6151864, 7689830, 12303728, 15379660, 30759320, 61518640]

約数ペア:

[(1, 61518640), (2, 30759320), (4, 15379660), (5, 12303728), (8, 7689830), (10, 6151864), (16, 3844915), (20, 3075932), (40, 1537966), (80, 768983)]