81148900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{16561}}^1$

素因数の和:16589

約数の個数: 54

約数和(自身を含む): 204855378

約数和(自身を除く): 123706478

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 350, 490, 700, 980, 1225, 2450, 4900, 16561, 33122, 66244, 82805, 115927, 165610, 231854, 331220, 414025, 463708, 579635, 811489, 828050, 1159270, 1622978, 1656100, 2318540, 2898175, 3245956, 4057445, 5796350, 8114890, 11592700, 16229780, 20287225, 40574450, 81148900]

約数ペア:

[(1, 81148900), (2, 40574450), (4, 20287225), (5, 16229780), (7, 11592700), (10, 8114890), (14, 5796350), (20, 4057445), (25, 3245956), (28, 2898175), (35, 2318540), (49, 1656100), (50, 1622978), (70, 1159270), (98, 828050), (100, 811489), (140, 579635), (175, 463708), (196, 414025), (245, 331220), (350, 231854), (490, 165610), (700, 115927), (980, 82805), (1225, 66244), (2450, 33122), (4900, 16561)]