128904325

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{991}}^1$

素因数の和:1066

約数の個数: 36

約数和(自身を含む): 179960704

約数和(自身を除く): 51056379

約数列:

[1, 5, 11, 25, 43, 55, 121, 215, 275, 473, 605, 991, 1075, 2365, 3025, 4955, 5203, 10901, 11825, 24775, 26015, 42613, 54505, 119911, 130075, 213065, 272525, 468743, 599555, 1065325, 2343715, 2997775, 5156173, 11718575, 25780865, 128904325]

約数ペア:

[(1, 128904325), (5, 25780865), (11, 11718575), (25, 5156173), (43, 2997775), (55, 2343715), (121, 1065325), (215, 599555), (275, 468743), (473, 272525), (605, 213065), (991, 130075), (1075, 119911), (2365, 54505), (3025, 42613), (4955, 26015), (5203, 24775), (10901, 11825)]