667668880

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{2467}}^1$

素因数の和:2696

約数の個数: 80

約数和(自身を含む): 1652572800

約数和(自身を除く): 984903920

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 199, 272, 340, 398, 680, 796, 995, 1360, 1592, 1990, 2467, 3184, 3383, 3980, 4934, 6766, 7960, 9868, 12335, 13532, 15920, 16915, 19736, 24670, 27064, 33830, 39472, 41939, 49340, 54128, 67660, 83878, 98680, 135320, 167756, 197360, 209695, 270640, 335512, 419390, 490933, 671024, 838780, 981866, 1677560, 1963732, 2454665, 3355120, 3927464, 4909330, 7854928, 8345861, 9818660, 16691722, 19637320, 33383444, 39274640, 41729305, 66766888, 83458610, 133533776, 166917220, 333834440, 667668880]

約数ペア:

[(1, 667668880), (2, 333834440), (4, 166917220), (5, 133533776), (8, 83458610), (10, 66766888), (16, 41729305), (17, 39274640), (20, 33383444), (34, 19637320), (40, 16691722), (68, 9818660), (80, 8345861), (85, 7854928), (136, 4909330), (170, 3927464), (199, 3355120), (272, 2454665), (340, 1963732), (398, 1677560), (680, 981866), (796, 838780), (995, 671024), (1360, 490933), (1592, 419390), (1990, 335512), (2467, 270640), (3184, 209695), (3383, 197360), (3980, 167756), (4934, 135320), (6766, 98680), (7960, 83878), (9868, 67660), (12335, 54128), (13532, 49340), (15920, 41939), (16915, 39472), (19736, 33830), (24670, 27064)]