638145

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1$

素因数の和:206

約数の個数: 32

約数和(自身を含む): 1180800

約数和(自身を除く): 542655

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 87, 135, 145, 163, 261, 435, 489, 783, 815, 1305, 1467, 2445, 3915, 4401, 4727, 7335, 14181, 22005, 23635, 42543, 70905, 127629, 212715, 638145]

約数ペア:

[(1, 638145), (3, 212715), (5, 127629), (9, 70905), (15, 42543), (27, 23635), (29, 22005), (45, 14181), (87, 7335), (135, 4727), (145, 4401), (163, 3915), (261, 2445), (435, 1467), (489, 1305), (783, 815)]