64859780

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{16979}}^1$

素因数の和:17179

約数の個数: 24

約数和(自身を含む): 136926720

約数和(自身を除く): 72066940

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 764, 955, 1910, 3820, 16979, 33958, 67916, 84895, 169790, 339580, 3242989, 6485978, 12971956, 16214945, 32429890, 64859780]

約数ペア:

[(1, 64859780), (2, 32429890), (4, 16214945), (5, 12971956), (10, 6485978), (20, 3242989), (191, 339580), (382, 169790), (764, 84895), (955, 67916), (1910, 33958), (3820, 16979)]