28519855

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3299}}^1$

素因数の和:3343

約数の個数: 32

約数和(自身を含む): 44352000

約数和(自身を除く): 15832145

約数列:

[1, 5, 7, 13, 19, 35, 65, 91, 95, 133, 247, 455, 665, 1235, 1729, 3299, 8645, 16495, 23093, 42887, 62681, 115465, 214435, 300209, 313405, 438767, 814853, 1501045, 2193835, 4074265, 5703971, 28519855]

約数ペア:

[(1, 28519855), (5, 5703971), (7, 4074265), (13, 2193835), (19, 1501045), (35, 814853), (65, 438767), (91, 313405), (95, 300209), (133, 214435), (247, 115465), (455, 62681), (665, 42887), (1235, 23093), (1729, 16495), (3299, 8645)]