20202380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{401}}^1$

素因数の和:650

約数の個数: 48

約数和(自身を含む): 46599840

約数和(自身を除く): 26397460

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 229, 401, 458, 802, 916, 1145, 1604, 2005, 2290, 2519, 4010, 4411, 4580, 5038, 8020, 8822, 10076, 12595, 17644, 22055, 25190, 44110, 50380, 88220, 91829, 183658, 367316, 459145, 918290, 1010119, 1836580, 2020238, 4040476, 5050595, 10101190, 20202380]

約数ペア:

[(1, 20202380), (2, 10101190), (4, 5050595), (5, 4040476), (10, 2020238), (11, 1836580), (20, 1010119), (22, 918290), (44, 459145), (55, 367316), (110, 183658), (220, 91829), (229, 88220), (401, 50380), (458, 44110), (802, 25190), (916, 22055), (1145, 17644), (1604, 12595), (2005, 10076), (2290, 8822), (2519, 8020), (4010, 5038), (4411, 4580)]