78905960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{281807}}^1$

素因数の和:281825

約数の個数: 32

約数和(自身を含む): 202901760

約数和(自身を除く): 123995800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 281807, 563614, 1127228, 1409035, 1972649, 2254456, 2818070, 3945298, 5636140, 7890596, 9863245, 11272280, 15781192, 19726490, 39452980, 78905960]

約数ペア:

[(1, 78905960), (2, 39452980), (4, 19726490), (5, 15781192), (7, 11272280), (8, 9863245), (10, 7890596), (14, 5636140), (20, 3945298), (28, 2818070), (35, 2254456), (40, 1972649), (56, 1409035), (70, 1127228), (140, 563614), (280, 281807)]