636981520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{643}}^1$

素因数の和:753

約数の個数: 160

約数和(自身を含む): 1782385920

約数和(自身を除く): 1145404400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 35, 40, 56, 58, 61, 70, 80, 112, 116, 122, 140, 145, 203, 232, 244, 280, 290, 305, 406, 427, 464, 488, 560, 580, 610, 643, 812, 854, 976, 1015, 1160, 1220, 1286, 1624, 1708, 1769, 2030, 2135, 2320, 2440, 2572, 3215, 3248, 3416, 3538, 4060, 4270, 4501, 4880, 5144, 6430, 6832, 7076, 8120, 8540, 8845, 9002, 10288, 12383, 12860, 14152, 16240, 17080, 17690, 18004, 18647, 22505, 24766, 25720, 28304, 34160, 35380, 36008, 37294, 39223, 45010, 49532, 51440, 61915, 70760, 72016, 74588, 78446, 90020, 93235, 99064, 123830, 130529, 141520, 149176, 156892, 180040, 186470, 196115, 198128, 247660, 261058, 274561, 298352, 313784, 360080, 372940, 392230, 495320, 522116, 549122, 627568, 652645, 745880, 784460, 990640, 1044232, 1098244, 1137467, 1305290, 1372805, 1491760, 1568920, 2088464, 2196488, 2274934, 2610580, 2745610, 3137840, 4392976, 4549868, 5221160, 5491220, 5687335, 7962269, 9099736, 10442320, 10982440, 11374670, 15924538, 18199472, 21964880, 22749340, 31849076, 39811345, 45498680, 63698152, 79622690, 90997360, 127396304, 159245380, 318490760, 636981520]

約数ペア:

[(1, 636981520), (2, 318490760), (4, 159245380), (5, 127396304), (7, 90997360), (8, 79622690), (10, 63698152), (14, 45498680), (16, 39811345), (20, 31849076), (28, 22749340), (29, 21964880), (35, 18199472), (40, 15924538), (56, 11374670), (58, 10982440), (61, 10442320), (70, 9099736), (80, 7962269), (112, 5687335), (116, 5491220), (122, 5221160), (140, 4549868), (145, 4392976), (203, 3137840), (232, 2745610), (244, 2610580), (280, 2274934), (290, 2196488), (305, 2088464), (406, 1568920), (427, 1491760), (464, 1372805), (488, 1305290), (560, 1137467), (580, 1098244), (610, 1044232), (643, 990640), (812, 784460), (854, 745880), (976, 652645), (1015, 627568), (1160, 549122), (1220, 522116), (1286, 495320), (1624, 392230), (1708, 372940), (1769, 360080), (2030, 313784), (2135, 298352), (2320, 274561), (2440, 261058), (2572, 247660), (3215, 198128), (3248, 196115), (3416, 186470), (3538, 180040), (4060, 156892), (4270, 149176), (4501, 141520), (4880, 130529), (5144, 123830), (6430, 99064), (6832, 93235), (7076, 90020), (8120, 78446), (8540, 74588), (8845, 72016), (9002, 70760), (10288, 61915), (12383, 51440), (12860, 49532), (14152, 45010), (16240, 39223), (17080, 37294), (17690, 36008), (18004, 35380), (18647, 34160), (22505, 28304), (24766, 25720)]