20195587916

素因数分解:

$2^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{557}}^1\times {\mathrm{12821}}^1$

素因数の和:13490

約数の個数: 48

約数和(自身を含む): 40867509312

約数和(自身を除く): 20671921396

約数列:

[1, 2, 4, 7, 14, 28, 101, 202, 404, 557, 707, 1114, 1414, 2228, 2828, 3899, 7798, 12821, 15596, 25642, 51284, 56257, 89747, 112514, 179494, 225028, 358988, 393799, 787598, 1294921, 1575196, 2589842, 5179684, 7141297, 9064447, 14282594, 18128894, 28565188, 36257788, 49989079, 99978158, 199956316, 721270997, 1442541994, 2885083988, 5048896979, 10097793958, 20195587916]

約数ペア:

[(1, 20195587916), (2, 10097793958), (4, 5048896979), (7, 2885083988), (14, 1442541994), (28, 721270997), (101, 199956316), (202, 99978158), (404, 49989079), (557, 36257788), (707, 28565188), (1114, 18128894), (1414, 14282594), (2228, 9064447), (2828, 7141297), (3899, 5179684), (7798, 2589842), (12821, 1575196), (15596, 1294921), (25642, 787598), (51284, 393799), (56257, 358988), (89747, 225028), (112514, 179494)]