123454520

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{62987}}^1$

素因数の和:63012

約数の個数: 48

約数和(自身を含む): 323128440

約数和(自身を除く): 199673920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 62987, 125974, 251948, 314935, 440909, 503896, 629870, 881818, 1259740, 1763636, 2204545, 2519480, 3086363, 3527272, 4409090, 6172726, 8818180, 12345452, 15431815, 17636360, 24690904, 30863630, 61727260, 123454520]

約数ペア:

[(1, 123454520), (2, 61727260), (4, 30863630), (5, 24690904), (7, 17636360), (8, 15431815), (10, 12345452), (14, 8818180), (20, 6172726), (28, 4409090), (35, 3527272), (40, 3086363), (49, 2519480), (56, 2204545), (70, 1763636), (98, 1259740), (140, 881818), (196, 629870), (245, 503896), (280, 440909), (392, 314935), (490, 251948), (980, 125974), (1960, 62987)]