65826580

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{8461}}^1$

素因数の和:8859

約数の個数: 24

約数和(自身を含む): 138607560

約数和(自身を除く): 72780980

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 3890, 7780, 8461, 16922, 33844, 42305, 84610, 169220, 3291329, 6582658, 13165316, 16456645, 32913290, 65826580]

約数ペア:

[(1, 65826580), (2, 32913290), (4, 16456645), (5, 13165316), (10, 6582658), (20, 3291329), (389, 169220), (778, 84610), (1556, 42305), (1945, 33844), (3890, 16922), (7780, 8461)]