979640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1289}}^1$

素因数の和:1319

約数の個数: 32

約数和(自身を含む): 2322000

約数和(自身を除く): 1342360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 1289, 2578, 5156, 6445, 10312, 12890, 24491, 25780, 48982, 51560, 97964, 122455, 195928, 244910, 489820, 979640]

約数ペア:

[(1, 979640), (2, 489820), (4, 244910), (5, 195928), (8, 122455), (10, 97964), (19, 51560), (20, 48982), (38, 25780), (40, 24491), (76, 12890), (95, 10312), (152, 6445), (190, 5156), (380, 2578), (760, 1289)]