19421810

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:159

約数の個数: 48

約数和(自身を含む): 37749888

約数和(自身を除く): 18328078

約数列:

[1, 2, 5, 10, 31, 43, 47, 62, 86, 94, 155, 215, 235, 310, 430, 470, 961, 1333, 1457, 1922, 2021, 2666, 2914, 4042, 4805, 6665, 7285, 9610, 10105, 13330, 14570, 20210, 41323, 45167, 62651, 82646, 90334, 125302, 206615, 225835, 313255, 413230, 451670, 626510, 1942181, 3884362, 9710905, 19421810]

約数ペア:

[(1, 19421810), (2, 9710905), (5, 3884362), (10, 1942181), (31, 626510), (43, 451670), (47, 413230), (62, 313255), (86, 225835), (94, 206615), (155, 125302), (215, 90334), (235, 82646), (310, 62651), (430, 45167), (470, 41323), (961, 20210), (1333, 14570), (1457, 13330), (1922, 10105), (2021, 9610), (2666, 7285), (2914, 6665), (4042, 4805)]