18071840

素因数分解:

$2^5\times 5^1\times {\mathrm{179}}^1\times {\mathrm{631}}^1$

素因数の和:825

約数の個数: 48

約数和(自身を含む): 43001280

約数和(自身を除く): 24929440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 179, 358, 631, 716, 895, 1262, 1432, 1790, 2524, 2864, 3155, 3580, 5048, 5728, 6310, 7160, 10096, 12620, 14320, 20192, 25240, 28640, 50480, 100960, 112949, 225898, 451796, 564745, 903592, 1129490, 1807184, 2258980, 3614368, 4517960, 9035920, 18071840]

約数ペア:

[(1, 18071840), (2, 9035920), (4, 4517960), (5, 3614368), (8, 2258980), (10, 1807184), (16, 1129490), (20, 903592), (32, 564745), (40, 451796), (80, 225898), (160, 112949), (179, 100960), (358, 50480), (631, 28640), (716, 25240), (895, 20192), (1262, 14320), (1432, 12620), (1790, 10096), (2524, 7160), (2864, 6310), (3155, 5728), (3580, 5048)]