9842020

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{239}}^1$

素因数の和:348

約数の個数: 48

約数和(自身を含む): 21772800

約数和(自身を除く): 11930780

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 71, 116, 142, 145, 239, 284, 290, 355, 478, 580, 710, 956, 1195, 1420, 2059, 2390, 4118, 4780, 6931, 8236, 10295, 13862, 16969, 20590, 27724, 33938, 34655, 41180, 67876, 69310, 84845, 138620, 169690, 339380, 492101, 984202, 1968404, 2460505, 4921010, 9842020]

約数ペア:

[(1, 9842020), (2, 4921010), (4, 2460505), (5, 1968404), (10, 984202), (20, 492101), (29, 339380), (58, 169690), (71, 138620), (116, 84845), (142, 69310), (145, 67876), (239, 41180), (284, 34655), (290, 33938), (355, 27724), (478, 20590), (580, 16969), (710, 13862), (956, 10295), (1195, 8236), (1420, 6931), (2059, 4780), (2390, 4118)]