2401780

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1$

素因数の和:180

約数の個数: 48

約数和(自身を含む): 5397840

約数和(自身を除く): 2996060

約数列:

[1, 2, 4, 5, 10, 20, 29, 41, 58, 82, 101, 116, 145, 164, 202, 205, 290, 404, 410, 505, 580, 820, 1010, 1189, 2020, 2378, 2929, 4141, 4756, 5858, 5945, 8282, 11716, 11890, 14645, 16564, 20705, 23780, 29290, 41410, 58580, 82820, 120089, 240178, 480356, 600445, 1200890, 2401780]

約数ペア:

[(1, 2401780), (2, 1200890), (4, 600445), (5, 480356), (10, 240178), (20, 120089), (29, 82820), (41, 58580), (58, 41410), (82, 29290), (101, 23780), (116, 20705), (145, 16564), (164, 14645), (202, 11890), (205, 11716), (290, 8282), (404, 5945), (410, 5858), (505, 4756), (580, 4141), (820, 2929), (1010, 2378), (1189, 2020)]