18019150

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1$

素因数の和:118

約数の個数: 72

約数和(自身を含む): 37687320

約数和(自身を除く): 19668170

約数列:

[1, 2, 5, 10, 17, 25, 29, 34, 43, 50, 58, 85, 86, 145, 170, 215, 289, 290, 425, 430, 493, 578, 725, 731, 850, 986, 1075, 1247, 1445, 1450, 1462, 2150, 2465, 2494, 2890, 3655, 4930, 6235, 7225, 7310, 8381, 12325, 12427, 12470, 14450, 16762, 18275, 21199, 24650, 24854, 31175, 36550, 41905, 42398, 62135, 62350, 83810, 105995, 124270, 209525, 211990, 310675, 360383, 419050, 529975, 621350, 720766, 1059950, 1801915, 3603830, 9009575, 18019150]

約数ペア:

[(1, 18019150), (2, 9009575), (5, 3603830), (10, 1801915), (17, 1059950), (25, 720766), (29, 621350), (34, 529975), (43, 419050), (50, 360383), (58, 310675), (85, 211990), (86, 209525), (145, 124270), (170, 105995), (215, 83810), (289, 62350), (290, 62135), (425, 42398), (430, 41905), (493, 36550), (578, 31175), (725, 24854), (731, 24650), (850, 21199), (986, 18275), (1075, 16762), (1247, 14450), (1445, 12470), (1450, 12427), (1462, 12325), (2150, 8381), (2465, 7310), (2494, 7225), (2890, 6235), (3655, 4930)]