157639400

素因数分解:

$2^3\times 5^2\times {\mathrm{197}}^1\times {\mathrm{4001}}^1$

素因数の和:4214

約数の個数: 48

約数和(自身を含む): 368464140

約数和(自身を除く): 210824740

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 197, 200, 394, 788, 985, 1576, 1970, 3940, 4001, 4925, 7880, 8002, 9850, 16004, 19700, 20005, 32008, 39400, 40010, 80020, 100025, 160040, 200050, 400100, 788197, 800200, 1576394, 3152788, 3940985, 6305576, 7881970, 15763940, 19704925, 31527880, 39409850, 78819700, 157639400]

約数ペア:

[(1, 157639400), (2, 78819700), (4, 39409850), (5, 31527880), (8, 19704925), (10, 15763940), (20, 7881970), (25, 6305576), (40, 3940985), (50, 3152788), (100, 1576394), (197, 800200), (200, 788197), (394, 400100), (788, 200050), (985, 160040), (1576, 100025), (1970, 80020), (3940, 40010), (4001, 39400), (4925, 32008), (7880, 20005), (8002, 19700), (9850, 16004)]