251368720

素因数分解:

$2^4\times 5^1\times {\mathrm{229}}^1\times {\mathrm{13721}}^1$

素因数の和:13963

約数の個数: 40

約数和(自身を含む): 587027160

約数和(自身を除く): 335658440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 229, 458, 916, 1145, 1832, 2290, 3664, 4580, 9160, 13721, 18320, 27442, 54884, 68605, 109768, 137210, 219536, 274420, 548840, 1097680, 3142109, 6284218, 12568436, 15710545, 25136872, 31421090, 50273744, 62842180, 125684360, 251368720]

約数ペア:

[(1, 251368720), (2, 125684360), (4, 62842180), (5, 50273744), (8, 31421090), (10, 25136872), (16, 15710545), (20, 12568436), (40, 6284218), (80, 3142109), (229, 1097680), (458, 548840), (916, 274420), (1145, 219536), (1832, 137210), (2290, 109768), (3664, 68605), (4580, 54884), (9160, 27442), (13721, 18320)]