28815875

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1103}}^1$

素因数の和:1148

約数の個数: 32

約数和(自身を含む): 41333760

約数和(自身を除く): 12517885

約数列:

[1, 5, 11, 19, 25, 55, 95, 125, 209, 275, 475, 1045, 1103, 1375, 2375, 5225, 5515, 12133, 20957, 26125, 27575, 60665, 104785, 137875, 230527, 303325, 523925, 1152635, 1516625, 2619625, 5763175, 28815875]

約数ペア:

[(1, 28815875), (5, 5763175), (11, 2619625), (19, 1516625), (25, 1152635), (55, 523925), (95, 303325), (125, 230527), (209, 137875), (275, 104785), (475, 60665), (1045, 27575), (1103, 26125), (1375, 20957), (2375, 12133), (5225, 5515)]