28731955

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1123}}^1$

素因数の和:1195

約数の個数: 32

約数和(自身を含む): 42729984

約数和(自身を除く): 13998029

約数列:

[1, 5, 7, 17, 35, 43, 85, 119, 215, 301, 595, 731, 1123, 1505, 3655, 5117, 5615, 7861, 19091, 25585, 39305, 48289, 95455, 133637, 241445, 338023, 668185, 820913, 1690115, 4104565, 5746391, 28731955]

約数ペア:

[(1, 28731955), (5, 5746391), (7, 4104565), (17, 1690115), (35, 820913), (43, 668185), (85, 338023), (119, 241445), (215, 133637), (301, 95455), (595, 48289), (731, 39305), (1123, 25585), (1505, 19091), (3655, 7861), (5117, 5615)]