138620

素因数分解:

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

素因数の和:277

約数の個数: 24

約数和(自身を含む): 302400

約数和(自身を除く): 163780

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 239, 290, 478, 580, 956, 1195, 2390, 4780, 6931, 13862, 27724, 34655, 69310, 138620]

約数ペア:

[(1, 138620), (2, 69310), (4, 34655), (5, 27724), (10, 13862), (20, 6931), (29, 4780), (58, 2390), (116, 1195), (145, 956), (239, 580), (290, 478)]