28739165

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{761}}^1$

素因数の和:869

約数の個数: 32

約数和(自身を含む): 43013376

約数和(自身を除く): 14274211

約数列:

[1, 5, 7, 13, 35, 65, 83, 91, 415, 455, 581, 761, 1079, 2905, 3805, 5327, 5395, 7553, 9893, 26635, 37765, 49465, 63163, 69251, 315815, 346255, 442141, 821119, 2210705, 4105595, 5747833, 28739165]

約数ペア:

[(1, 28739165), (5, 5747833), (7, 4105595), (13, 2210705), (35, 821119), (65, 442141), (83, 346255), (91, 315815), (415, 69251), (455, 63163), (581, 49465), (761, 37765), (1079, 26635), (2905, 9893), (3805, 7553), (5327, 5395)]