661829168

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{43}}^1$

素因数の和:144

約数の個数: 240

約数和(自身を含む): 1820383488

約数和(自身を除く): 1158554320

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 16, 22, 26, 28, 31, 43, 44, 52, 56, 62, 77, 86, 88, 91, 104, 112, 124, 143, 154, 172, 176, 182, 208, 217, 248, 286, 301, 308, 341, 344, 364, 403, 434, 473, 496, 559, 572, 602, 616, 682, 688, 728, 806, 868, 946, 961, 1001, 1118, 1144, 1204, 1232, 1333, 1364, 1456, 1612, 1736, 1892, 1922, 2002, 2236, 2288, 2387, 2408, 2666, 2728, 2821, 3224, 3311, 3472, 3784, 3844, 3913, 4004, 4433, 4472, 4774, 4816, 5332, 5456, 5642, 6149, 6448, 6622, 6727, 7568, 7688, 7826, 8008, 8866, 8944, 9331, 9548, 10571, 10664, 11284, 12298, 12493, 13244, 13454, 14663, 15376, 15652, 16016, 17329, 17732, 18662, 19096, 21142, 21328, 22568, 24596, 24986, 26488, 26908, 29326, 31031, 31304, 34658, 35464, 37324, 38192, 41323, 42284, 43043, 45136, 49192, 49972, 52976, 53816, 58652, 62062, 62608, 69316, 70928, 73997, 74648, 82646, 84568, 86086, 87451, 98384, 99944, 102641, 107632, 117304, 121303, 124124, 137423, 138632, 147994, 149296, 165292, 169136, 172172, 174902, 190619, 199888, 205282, 234608, 242606, 248248, 274846, 277264, 289261, 295988, 330584, 344344, 349804, 381238, 410564, 454553, 485212, 496496, 537199, 549692, 578522, 591976, 661168, 688688, 699608, 762476, 821128, 909106, 961961, 970424, 1074398, 1099384, 1157044, 1183952, 1334333, 1399216, 1524952, 1642256, 1818212, 1923922, 1940848, 2148796, 2198768, 2314088, 2668666, 3049904, 3181871, 3636424, 3760393, 3847844, 4297592, 4628176, 5337332, 5909189, 6363742, 7272848, 7520786, 7695688, 8595184, 10674664, 11818378, 12727484, 15041572, 15391376, 21349328, 23636756, 25454968, 30083144, 41364323, 47273512, 50909936, 60166288, 82728646, 94547024, 165457292, 330914584, 661829168]

約数ペア:

[(1, 661829168), (2, 330914584), (4, 165457292), (7, 94547024), (8, 82728646), (11, 60166288), (13, 50909936), (14, 47273512), (16, 41364323), (22, 30083144), (26, 25454968), (28, 23636756), (31, 21349328), (43, 15391376), (44, 15041572), (52, 12727484), (56, 11818378), (62, 10674664), (77, 8595184), (86, 7695688), (88, 7520786), (91, 7272848), (104, 6363742), (112, 5909189), (124, 5337332), (143, 4628176), (154, 4297592), (172, 3847844), (176, 3760393), (182, 3636424), (208, 3181871), (217, 3049904), (248, 2668666), (286, 2314088), (301, 2198768), (308, 2148796), (341, 1940848), (344, 1923922), (364, 1818212), (403, 1642256), (434, 1524952), (473, 1399216), (496, 1334333), (559, 1183952), (572, 1157044), (602, 1099384), (616, 1074398), (682, 970424), (688, 961961), (728, 909106), (806, 821128), (868, 762476), (946, 699608), (961, 688688), (1001, 661168), (1118, 591976), (1144, 578522), (1204, 549692), (1232, 537199), (1333, 496496), (1364, 485212), (1456, 454553), (1612, 410564), (1736, 381238), (1892, 349804), (1922, 344344), (2002, 330584), (2236, 295988), (2288, 289261), (2387, 277264), (2408, 274846), (2666, 248248), (2728, 242606), (2821, 234608), (3224, 205282), (3311, 199888), (3472, 190619), (3784, 174902), (3844, 172172), (3913, 169136), (4004, 165292), (4433, 149296), (4472, 147994), (4774, 138632), (4816, 137423), (5332, 124124), (5456, 121303), (5642, 117304), (6149, 107632), (6448, 102641), (6622, 99944), (6727, 98384), (7568, 87451), (7688, 86086), (7826, 84568), (8008, 82646), (8866, 74648), (8944, 73997), (9331, 70928), (9548, 69316), (10571, 62608), (10664, 62062), (11284, 58652), (12298, 53816), (12493, 52976), (13244, 49972), (13454, 49192), (14663, 45136), (15376, 43043), (15652, 42284), (16016, 41323), (17329, 38192), (17732, 37324), (18662, 35464), (19096, 34658), (21142, 31304), (21328, 31031), (22568, 29326), (24596, 26908), (24986, 26488)]