208076895

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{887}}^1$

素因数の和:1312

約数の個数: 48

約数和(自身を含む): 389817792

約数和(自身を除く): 181740897

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 401, 585, 887, 1203, 2005, 2661, 3609, 4435, 5213, 6015, 7983, 11531, 13305, 15639, 18045, 26065, 34593, 39915, 46917, 57655, 78195, 103779, 172965, 234585, 355687, 518895, 1067061, 1778435, 3201183, 4623931, 5335305, 13871793, 16005915, 23119655, 41615379, 69358965, 208076895]

約数ペア:

[(1, 208076895), (3, 69358965), (5, 41615379), (9, 23119655), (13, 16005915), (15, 13871793), (39, 5335305), (45, 4623931), (65, 3201183), (117, 1778435), (195, 1067061), (401, 518895), (585, 355687), (887, 234585), (1203, 172965), (2005, 103779), (2661, 78195), (3609, 57655), (4435, 46917), (5213, 39915), (6015, 34593), (7983, 26065), (11531, 18045), (13305, 15639)]