13921325

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:146

約数の個数: 48

約数和(自身を含む): 20570112

約数和(自身を除く): 6648787

約数列:

[1, 5, 11, 23, 25, 31, 55, 71, 115, 155, 253, 275, 341, 355, 575, 713, 775, 781, 1265, 1633, 1705, 1775, 2201, 3565, 3905, 6325, 7843, 8165, 8525, 11005, 17825, 17963, 19525, 24211, 39215, 40825, 50623, 55025, 89815, 121055, 196075, 253115, 449075, 556853, 605275, 1265575, 2784265, 13921325]

約数ペア:

[(1, 13921325), (5, 2784265), (11, 1265575), (23, 605275), (25, 556853), (31, 449075), (55, 253115), (71, 196075), (115, 121055), (155, 89815), (253, 55025), (275, 50623), (341, 40825), (355, 39215), (575, 24211), (713, 19525), (775, 17963), (781, 17825), (1265, 11005), (1633, 8525), (1705, 8165), (1775, 7843), (2201, 6325), (3565, 3905)]