20974450

素因数分解:

$2^1\times 5^2\times 7^3\times {\mathrm{1223}}^1$

素因数の和:1256

約数の個数: 48

約数和(自身を含む): 45532800

約数和(自身を除く): 24558350

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 98, 175, 245, 343, 350, 490, 686, 1223, 1225, 1715, 2446, 2450, 3430, 6115, 8561, 8575, 12230, 17122, 17150, 30575, 42805, 59927, 61150, 85610, 119854, 214025, 299635, 419489, 428050, 599270, 838978, 1498175, 2097445, 2996350, 4194890, 10487225, 20974450]

約数ペア:

[(1, 20974450), (2, 10487225), (5, 4194890), (7, 2996350), (10, 2097445), (14, 1498175), (25, 838978), (35, 599270), (49, 428050), (50, 419489), (70, 299635), (98, 214025), (175, 119854), (245, 85610), (343, 61150), (350, 59927), (490, 42805), (686, 30575), (1223, 17150), (1225, 17122), (1715, 12230), (2446, 8575), (2450, 8561), (3430, 6115)]