20090412405

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{997}}^1$

素因数の和:1156

約数の個数: 192

約数和(自身を含む): 43582675968

約数和(自身を除く): 23492263563

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 35, 45, 51, 53, 63, 71, 85, 105, 119, 153, 159, 213, 255, 265, 315, 355, 357, 371, 477, 497, 595, 639, 765, 795, 901, 997, 1065, 1071, 1113, 1207, 1491, 1785, 1855, 2385, 2485, 2703, 2991, 3195, 3339, 3621, 3763, 4473, 4505, 4985, 5355, 5565, 6035, 6307, 6979, 7455, 8109, 8449, 8973, 10863, 11289, 13515, 14955, 16695, 16949, 18105, 18815, 18921, 20937, 22365, 25347, 26341, 31535, 33867, 34895, 40545, 42245, 44865, 50847, 52841, 54315, 56445, 56763, 62811, 63971, 70787, 76041, 79023, 84745, 94605, 104685, 118643, 126735, 131705, 152541, 158523, 169335, 191913, 212361, 237069, 254235, 264205, 283815, 314055, 319855, 353935, 355929, 369887, 380205, 395115, 447797, 475569, 495509, 575739, 593215, 637083, 762705, 792615, 898297, 959565, 1061805, 1067787, 1109661, 1185345, 1203379, 1343391, 1486527, 1779645, 1849435, 2238985, 2377845, 2477545, 2694891, 2878695, 3185415, 3328983, 3610137, 3751711, 4030173, 4459581, 4491485, 5338935, 5548305, 6016895, 6288079, 6716955, 7432635, 8084673, 8423653, 10830411, 11255133, 13474455, 16644915, 18050685, 18758555, 18864237, 20150865, 22297905, 25270959, 26261977, 31440395, 33765399, 40423365, 42118265, 54152055, 56275665, 56592711, 63779087, 75812877, 78785931, 94321185, 126354795, 131309885, 168826995, 191337261, 236357793, 282963555, 318895435, 379064385, 393929655, 446453609, 574011783, 956686305, 1181788965, 1339360827, 2232268045, 2870058915, 4018082481, 6696804135, 20090412405]

約数ペア:

[(1, 20090412405), (3, 6696804135), (5, 4018082481), (7, 2870058915), (9, 2232268045), (15, 1339360827), (17, 1181788965), (21, 956686305), (35, 574011783), (45, 446453609), (51, 393929655), (53, 379064385), (63, 318895435), (71, 282963555), (85, 236357793), (105, 191337261), (119, 168826995), (153, 131309885), (159, 126354795), (213, 94321185), (255, 78785931), (265, 75812877), (315, 63779087), (355, 56592711), (357, 56275665), (371, 54152055), (477, 42118265), (497, 40423365), (595, 33765399), (639, 31440395), (765, 26261977), (795, 25270959), (901, 22297905), (997, 20150865), (1065, 18864237), (1071, 18758555), (1113, 18050685), (1207, 16644915), (1491, 13474455), (1785, 11255133), (1855, 10830411), (2385, 8423653), (2485, 8084673), (2703, 7432635), (2991, 6716955), (3195, 6288079), (3339, 6016895), (3621, 5548305), (3763, 5338935), (4473, 4491485), (4505, 4459581), (4985, 4030173), (5355, 3751711), (5565, 3610137), (6035, 3328983), (6307, 3185415), (6979, 2878695), (7455, 2694891), (8109, 2477545), (8449, 2377845), (8973, 2238985), (10863, 1849435), (11289, 1779645), (13515, 1486527), (14955, 1343391), (16695, 1203379), (16949, 1185345), (18105, 1109661), (18815, 1067787), (18921, 1061805), (20937, 959565), (22365, 898297), (25347, 792615), (26341, 762705), (31535, 637083), (33867, 593215), (34895, 575739), (40545, 495509), (42245, 475569), (44865, 447797), (50847, 395115), (52841, 380205), (54315, 369887), (56445, 355929), (56763, 353935), (62811, 319855), (63971, 314055), (70787, 283815), (76041, 264205), (79023, 254235), (84745, 237069), (94605, 212361), (104685, 191913), (118643, 169335), (126735, 158523), (131705, 152541)]