20237709440

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^3\times {\mathrm{37}}^1\times {\mathrm{389}}^1$

素因数の和:484

約数の個数: 256

約数和(自身を含む): 53965548000

約数和(自身を除く): 33727838560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 37, 40, 52, 64, 65, 74, 80, 104, 128, 130, 148, 160, 169, 185, 208, 260, 296, 320, 338, 370, 389, 416, 481, 520, 592, 640, 676, 740, 778, 832, 845, 962, 1040, 1184, 1352, 1480, 1556, 1664, 1690, 1924, 1945, 2080, 2197, 2368, 2405, 2704, 2960, 3112, 3380, 3848, 3890, 4160, 4394, 4736, 4810, 5057, 5408, 5920, 6224, 6253, 6760, 7696, 7780, 8320, 8788, 9620, 10114, 10816, 10985, 11840, 12448, 12506, 13520, 14393, 15392, 15560, 17576, 19240, 20228, 21632, 21970, 23680, 24896, 25012, 25285, 27040, 28786, 30784, 31120, 31265, 35152, 38480, 40456, 43940, 49792, 50024, 50570, 54080, 57572, 61568, 62240, 62530, 65741, 70304, 71965, 76960, 80912, 81289, 87880, 100048, 101140, 108160, 115144, 124480, 125060, 131482, 140608, 143930, 153920, 161824, 162578, 175760, 187109, 200096, 202280, 230288, 248960, 250120, 262964, 281216, 287860, 307840, 323648, 325156, 328705, 351520, 374218, 400192, 404560, 406445, 460576, 500240, 525928, 575720, 647296, 650312, 657410, 703040, 748436, 800384, 809120, 812890, 854633, 921152, 935545, 1000480, 1051856, 1151440, 1300624, 1314820, 1406080, 1496872, 1618240, 1625780, 1709266, 1842304, 1871090, 2000960, 2103712, 2302880, 2432417, 2601248, 2629640, 2993744, 3236480, 3251560, 3418532, 3742180, 4001920, 4207424, 4273165, 4605760, 4864834, 5202496, 5259280, 5987488, 6503120, 6837064, 7484360, 8414848, 8546330, 9211520, 9729668, 10404992, 10518560, 11974976, 12162085, 13006240, 13674128, 14968720, 17092660, 19459336, 21037120, 23949952, 24324170, 26012480, 27348256, 29937440, 31621421, 34185320, 38918672, 42074240, 48648340, 52024960, 54696512, 59874880, 63242842, 68370640, 77837344, 97296680, 109393024, 119749760, 126485684, 136741280, 155674688, 158107105, 194593360, 252971368, 273482560, 311349376, 316214210, 389186720, 505942736, 546965120, 632428420, 778373440, 1011885472, 1264856840, 1556746880, 2023770944, 2529713680, 4047541888, 5059427360, 10118854720, 20237709440]

約数ペア:

[(1, 20237709440), (2, 10118854720), (4, 5059427360), (5, 4047541888), (8, 2529713680), (10, 2023770944), (13, 1556746880), (16, 1264856840), (20, 1011885472), (26, 778373440), (32, 632428420), (37, 546965120), (40, 505942736), (52, 389186720), (64, 316214210), (65, 311349376), (74, 273482560), (80, 252971368), (104, 194593360), (128, 158107105), (130, 155674688), (148, 136741280), (160, 126485684), (169, 119749760), (185, 109393024), (208, 97296680), (260, 77837344), (296, 68370640), (320, 63242842), (338, 59874880), (370, 54696512), (389, 52024960), (416, 48648340), (481, 42074240), (520, 38918672), (592, 34185320), (640, 31621421), (676, 29937440), (740, 27348256), (778, 26012480), (832, 24324170), (845, 23949952), (962, 21037120), (1040, 19459336), (1184, 17092660), (1352, 14968720), (1480, 13674128), (1556, 13006240), (1664, 12162085), (1690, 11974976), (1924, 10518560), (1945, 10404992), (2080, 9729668), (2197, 9211520), (2368, 8546330), (2405, 8414848), (2704, 7484360), (2960, 6837064), (3112, 6503120), (3380, 5987488), (3848, 5259280), (3890, 5202496), (4160, 4864834), (4394, 4605760), (4736, 4273165), (4810, 4207424), (5057, 4001920), (5408, 3742180), (5920, 3418532), (6224, 3251560), (6253, 3236480), (6760, 2993744), (7696, 2629640), (7780, 2601248), (8320, 2432417), (8788, 2302880), (9620, 2103712), (10114, 2000960), (10816, 1871090), (10985, 1842304), (11840, 1709266), (12448, 1625780), (12506, 1618240), (13520, 1496872), (14393, 1406080), (15392, 1314820), (15560, 1300624), (17576, 1151440), (19240, 1051856), (20228, 1000480), (21632, 935545), (21970, 921152), (23680, 854633), (24896, 812890), (25012, 809120), (25285, 800384), (27040, 748436), (28786, 703040), (30784, 657410), (31120, 650312), (31265, 647296), (35152, 575720), (38480, 525928), (40456, 500240), (43940, 460576), (49792, 406445), (50024, 404560), (50570, 400192), (54080, 374218), (57572, 351520), (61568, 328705), (62240, 325156), (62530, 323648), (65741, 307840), (70304, 287860), (71965, 281216), (76960, 262964), (80912, 250120), (81289, 248960), (87880, 230288), (100048, 202280), (101140, 200096), (108160, 187109), (115144, 175760), (124480, 162578), (125060, 161824), (131482, 153920), (140608, 143930)]