131440905

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{2143}}^1$

素因数の和:2230

約数の個数: 48

約数和(自身を含む): 240814080

約数和(自身を除く): 109373175

約数列:

[1, 3, 5, 9, 15, 29, 45, 47, 87, 141, 145, 235, 261, 423, 435, 705, 1305, 1363, 2115, 2143, 4089, 6429, 6815, 10715, 12267, 19287, 20445, 32145, 61335, 62147, 96435, 100721, 186441, 302163, 310735, 503605, 559323, 906489, 932205, 1510815, 2796615, 2920909, 4532445, 8762727, 14604545, 26288181, 43813635, 131440905]

約数ペア:

[(1, 131440905), (3, 43813635), (5, 26288181), (9, 14604545), (15, 8762727), (29, 4532445), (45, 2920909), (47, 2796615), (87, 1510815), (141, 932205), (145, 906489), (235, 559323), (261, 503605), (423, 310735), (435, 302163), (705, 186441), (1305, 100721), (1363, 96435), (2115, 62147), (2143, 61335), (4089, 32145), (6429, 20445), (6815, 19287), (10715, 12267)]