77981880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{649849}}^1$

素因数の和:649863

約数の個数: 32

約数和(自身を含む): 233946000

約数和(自身を除く): 155964120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 649849, 1299698, 1949547, 2599396, 3249245, 3899094, 5198792, 6498490, 7798188, 9747735, 12996980, 15596376, 19495470, 25993960, 38990940, 77981880]

約数ペア:

[(1, 77981880), (2, 38990940), (3, 25993960), (4, 19495470), (5, 15596376), (6, 12996980), (8, 9747735), (10, 7798188), (12, 6498490), (15, 5198792), (20, 3899094), (24, 3249245), (30, 2599396), (40, 1949547), (60, 1299698), (120, 649849)]