2020785

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{241}}^1$

素因数の和:305

約数の個数: 32

約数和(自身を含む): 3577728

約数和(自身を除く): 1556943

約数列:

[1, 3, 5, 13, 15, 39, 43, 65, 129, 195, 215, 241, 559, 645, 723, 1205, 1677, 2795, 3133, 3615, 8385, 9399, 10363, 15665, 31089, 46995, 51815, 134719, 155445, 404157, 673595, 2020785]

約数ペア:

[(1, 2020785), (3, 673595), (5, 404157), (13, 155445), (15, 134719), (39, 51815), (43, 46995), (65, 31089), (129, 15665), (195, 10363), (215, 9399), (241, 8385), (559, 3615), (645, 3133), (723, 2795), (1205, 1677)]