51619390

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{79}}^1\times {\mathrm{181}}^1$

素因数の和:305

約数の個数: 48

約数和(自身を含む): 99852480

約数和(自身を除く): 48233090

約数列:

[1, 2, 5, 10, 19, 38, 79, 95, 158, 181, 190, 361, 362, 395, 722, 790, 905, 1501, 1805, 1810, 3002, 3439, 3610, 6878, 7505, 14299, 15010, 17195, 28519, 28598, 34390, 57038, 65341, 71495, 130682, 142595, 142990, 271681, 285190, 326705, 543362, 653410, 1358405, 2716810, 5161939, 10323878, 25809695, 51619390]

約数ペア:

[(1, 51619390), (2, 25809695), (5, 10323878), (10, 5161939), (19, 2716810), (38, 1358405), (79, 653410), (95, 543362), (158, 326705), (181, 285190), (190, 271681), (361, 142990), (362, 142595), (395, 130682), (722, 71495), (790, 65341), (905, 57038), (1501, 34390), (1805, 28598), (1810, 28519), (3002, 17195), (3439, 15010), (3610, 14299), (6878, 7505)]