3994460

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:206

約数の個数: 48

約数和(自身を含む): 8890560

約数和(自身を除く): 4896100

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 71, 97, 116, 142, 145, 194, 284, 290, 355, 388, 485, 580, 710, 970, 1420, 1940, 2059, 2813, 4118, 5626, 6887, 8236, 10295, 11252, 13774, 14065, 20590, 27548, 28130, 34435, 41180, 56260, 68870, 137740, 199723, 399446, 798892, 998615, 1997230, 3994460]

約数ペア:

[(1, 3994460), (2, 1997230), (4, 998615), (5, 798892), (10, 399446), (20, 199723), (29, 137740), (58, 68870), (71, 56260), (97, 41180), (116, 34435), (142, 28130), (145, 27548), (194, 20590), (284, 14065), (290, 13774), (355, 11252), (388, 10295), (485, 8236), (580, 6887), (710, 5626), (970, 4118), (1420, 2813), (1940, 2059)]