28451220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{67741}}^1$

素因数の和:67760

約数の個数: 48

約数和(自身を含む): 91045248

約数和(自身を除く): 62594028

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 67741, 135482, 203223, 270964, 338705, 406446, 474187, 677410, 812892, 948374, 1016115, 1354820, 1422561, 1896748, 2032230, 2370935, 2845122, 4064460, 4741870, 5690244, 7112805, 9483740, 14225610, 28451220]

約数ペア:

[(1, 28451220), (2, 14225610), (3, 9483740), (4, 7112805), (5, 5690244), (6, 4741870), (7, 4064460), (10, 2845122), (12, 2370935), (14, 2032230), (15, 1896748), (20, 1422561), (21, 1354820), (28, 1016115), (30, 948374), (35, 812892), (42, 677410), (60, 474187), (70, 406446), (84, 338705), (105, 270964), (140, 203223), (210, 135482), (420, 67741)]