13820125

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2$

素因数の和:91

約数の個数: 48

約数和(自身を含む): 20704320

約数和(自身を除く): 6884195

約数列:

[1, 5, 11, 19, 23, 25, 55, 95, 115, 125, 209, 253, 275, 437, 475, 529, 575, 1045, 1265, 1375, 2185, 2375, 2645, 2875, 4807, 5225, 5819, 6325, 10051, 10925, 13225, 24035, 26125, 29095, 31625, 50255, 54625, 66125, 110561, 120175, 145475, 251275, 552805, 600875, 727375, 1256375, 2764025, 13820125]

約数ペア:

[(1, 13820125), (5, 2764025), (11, 1256375), (19, 727375), (23, 600875), (25, 552805), (55, 251275), (95, 145475), (115, 120175), (125, 110561), (209, 66125), (253, 54625), (275, 50255), (437, 31625), (475, 29095), (529, 26125), (575, 24035), (1045, 13225), (1265, 10925), (1375, 10051), (2185, 6325), (2375, 5819), (2645, 5225), (2875, 4807)]