20160864280

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{439}}^1\times {\mathrm{60427}}^1$

素因数の和:60896

約数の個数: 64

約数和(自身を含む): 47858976000

約数和(自身を除く): 27698111720

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 439, 760, 878, 1756, 2195, 3512, 4390, 8341, 8780, 16682, 17560, 33364, 41705, 60427, 66728, 83410, 120854, 166820, 241708, 302135, 333640, 483416, 604270, 1148113, 1208540, 2296226, 2417080, 4592452, 5740565, 9184904, 11481130, 22962260, 26527453, 45924520, 53054906, 106109812, 132637265, 212219624, 265274530, 504021607, 530549060, 1008043214, 1061098120, 2016086428, 2520108035, 4032172856, 5040216070, 10080432140, 20160864280]

約数ペア:

[(1, 20160864280), (2, 10080432140), (4, 5040216070), (5, 4032172856), (8, 2520108035), (10, 2016086428), (19, 1061098120), (20, 1008043214), (38, 530549060), (40, 504021607), (76, 265274530), (95, 212219624), (152, 132637265), (190, 106109812), (380, 53054906), (439, 45924520), (760, 26527453), (878, 22962260), (1756, 11481130), (2195, 9184904), (3512, 5740565), (4390, 4592452), (8341, 2417080), (8780, 2296226), (16682, 1208540), (17560, 1148113), (33364, 604270), (41705, 483416), (60427, 333640), (66728, 302135), (83410, 241708), (120854, 166820)]