13409825

素因数分解:

$5^2\times {\mathrm{11}}^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1$

素因数の和:87

約数の個数: 48

約数和(自身を含む): 20332032

約数和(自身を除く): 6922207

約数列:

[1, 5, 11, 13, 25, 31, 55, 65, 121, 143, 155, 275, 325, 341, 403, 605, 715, 775, 1331, 1573, 1705, 2015, 3025, 3575, 3751, 4433, 6655, 7865, 8525, 10075, 17303, 18755, 22165, 33275, 39325, 41261, 48763, 86515, 93775, 110825, 206305, 243815, 432575, 536393, 1031525, 1219075, 2681965, 13409825]

約数ペア:

[(1, 13409825), (5, 2681965), (11, 1219075), (13, 1031525), (25, 536393), (31, 432575), (55, 243815), (65, 206305), (121, 110825), (143, 93775), (155, 86515), (275, 48763), (325, 41261), (341, 39325), (403, 33275), (605, 22165), (715, 18755), (775, 17303), (1331, 10075), (1573, 8525), (1705, 7865), (2015, 6655), (3025, 4433), (3575, 3751)]