28565355

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1231}}^1$

素因数の和:1276

約数の個数: 64

約数和(自身を含む): 59609088

約数和(自身を除く): 31043733

約数列:

[1, 3, 5, 7, 13, 15, 17, 21, 35, 39, 51, 65, 85, 91, 105, 119, 195, 221, 255, 273, 357, 455, 595, 663, 1105, 1231, 1365, 1547, 1785, 3315, 3693, 4641, 6155, 7735, 8617, 16003, 18465, 20927, 23205, 25851, 43085, 48009, 62781, 80015, 104635, 112021, 129255, 146489, 240045, 272051, 313905, 336063, 439467, 560105, 732445, 816153, 1360255, 1680315, 1904357, 2197335, 4080765, 5713071, 9521785, 28565355]

約数ペア:

[(1, 28565355), (3, 9521785), (5, 5713071), (7, 4080765), (13, 2197335), (15, 1904357), (17, 1680315), (21, 1360255), (35, 816153), (39, 732445), (51, 560105), (65, 439467), (85, 336063), (91, 313905), (105, 272051), (119, 240045), (195, 146489), (221, 129255), (255, 112021), (273, 104635), (357, 80015), (455, 62781), (595, 48009), (663, 43085), (1105, 25851), (1231, 23205), (1365, 20927), (1547, 18465), (1785, 16003), (3315, 8617), (3693, 7735), (4641, 6155)]