261663985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{1579}}^1$

素因数の和:1749

約数の個数: 32

約数和(自身を含む): 360391680

約数和(自身を除く): 98727695

約数列:

[1, 5, 11, 23, 55, 115, 131, 253, 655, 1265, 1441, 1579, 3013, 7205, 7895, 15065, 17369, 33143, 36317, 86845, 165715, 181585, 206849, 399487, 1034245, 1997435, 2275339, 4757527, 11376695, 23787635, 52332797, 261663985]

約数ペア:

[(1, 261663985), (5, 52332797), (11, 23787635), (23, 11376695), (55, 4757527), (115, 2275339), (131, 1997435), (253, 1034245), (655, 399487), (1265, 206849), (1441, 181585), (1579, 165715), (3013, 86845), (7205, 36317), (7895, 33143), (15065, 17369)]