638604

素因数分解:

$2^2\times 3^7\times {\mathrm{73}}^1$

素因数の和:98

約数の個数: 48

約数和(自身を含む): 1699040

約数和(自身を除く): 1060436

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 73, 81, 108, 146, 162, 219, 243, 292, 324, 438, 486, 657, 729, 876, 972, 1314, 1458, 1971, 2187, 2628, 2916, 3942, 4374, 5913, 7884, 8748, 11826, 17739, 23652, 35478, 53217, 70956, 106434, 159651, 212868, 319302, 638604]

約数ペア:

[(1, 638604), (2, 319302), (3, 212868), (4, 159651), (6, 106434), (9, 70956), (12, 53217), (18, 35478), (27, 23652), (36, 17739), (54, 11826), (73, 8748), (81, 7884), (108, 5913), (146, 4374), (162, 3942), (219, 2916), (243, 2628), (292, 2187), (324, 1971), (438, 1458), (486, 1314), (657, 972), (729, 876)]