20801477760

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{21799}}^1$

素因数の和:21899

約数の個数: 256

約数和(自身を含む): 76847616000

約数和(自身を除く): 56046138240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 71, 80, 84, 96, 105, 112, 120, 128, 140, 142, 160, 168, 192, 210, 213, 224, 240, 280, 284, 320, 336, 355, 384, 420, 426, 448, 480, 497, 560, 568, 640, 672, 710, 840, 852, 896, 960, 994, 1065, 1120, 1136, 1344, 1420, 1491, 1680, 1704, 1920, 1988, 2130, 2240, 2272, 2485, 2688, 2840, 2982, 3360, 3408, 3976, 4260, 4480, 4544, 4970, 5680, 5964, 6720, 6816, 7455, 7952, 8520, 9088, 9940, 11360, 11928, 13440, 13632, 14910, 15904, 17040, 19880, 21799, 22720, 23856, 27264, 29820, 31808, 34080, 39760, 43598, 45440, 47712, 59640, 63616, 65397, 68160, 79520, 87196, 95424, 108995, 119280, 130794, 136320, 152593, 159040, 174392, 190848, 217990, 238560, 261588, 305186, 318080, 326985, 348784, 435980, 457779, 477120, 523176, 610372, 653970, 697568, 762965, 871960, 915558, 954240, 1046352, 1220744, 1307940, 1395136, 1525930, 1547729, 1743920, 1831116, 2092704, 2288895, 2441488, 2615880, 2790272, 3051860, 3095458, 3487840, 3662232, 4185408, 4577790, 4643187, 4882976, 5231760, 6103720, 6190916, 6975680, 7324464, 7738645, 8370816, 9155580, 9286374, 9765952, 10463520, 10834103, 12207440, 12381832, 13951360, 14648928, 15477290, 18311160, 18572748, 19531904, 20927040, 21668206, 23215935, 24414880, 24763664, 29297856, 30954580, 32502309, 36622320, 37145496, 41854080, 43336412, 46431870, 48829760, 49527328, 54170515, 58595712, 61909160, 65004618, 73244640, 74290992, 86672824, 92863740, 97659520, 99054656, 108341030, 123818320, 130009236, 146489280, 148581984, 162511545, 173345648, 185727480, 198109312, 216682060, 247636640, 260018472, 292978560, 297163968, 325023090, 346691296, 371454960, 433364120, 495273280, 520036944, 594327936, 650046180, 693382592, 742909920, 866728240, 990546560, 1040073888, 1300092360, 1386765184, 1485819840, 1733456480, 2080147776, 2600184720, 2971639680, 3466912960, 4160295552, 5200369440, 6933825920, 10400738880, 20801477760]

約数ペア:

[(1, 20801477760), (2, 10400738880), (3, 6933825920), (4, 5200369440), (5, 4160295552), (6, 3466912960), (7, 2971639680), (8, 2600184720), (10, 2080147776), (12, 1733456480), (14, 1485819840), (15, 1386765184), (16, 1300092360), (20, 1040073888), (21, 990546560), (24, 866728240), (28, 742909920), (30, 693382592), (32, 650046180), (35, 594327936), (40, 520036944), (42, 495273280), (48, 433364120), (56, 371454960), (60, 346691296), (64, 325023090), (70, 297163968), (71, 292978560), (80, 260018472), (84, 247636640), (96, 216682060), (105, 198109312), (112, 185727480), (120, 173345648), (128, 162511545), (140, 148581984), (142, 146489280), (160, 130009236), (168, 123818320), (192, 108341030), (210, 99054656), (213, 97659520), (224, 92863740), (240, 86672824), (280, 74290992), (284, 73244640), (320, 65004618), (336, 61909160), (355, 58595712), (384, 54170515), (420, 49527328), (426, 48829760), (448, 46431870), (480, 43336412), (497, 41854080), (560, 37145496), (568, 36622320), (640, 32502309), (672, 30954580), (710, 29297856), (840, 24763664), (852, 24414880), (896, 23215935), (960, 21668206), (994, 20927040), (1065, 19531904), (1120, 18572748), (1136, 18311160), (1344, 15477290), (1420, 14648928), (1491, 13951360), (1680, 12381832), (1704, 12207440), (1920, 10834103), (1988, 10463520), (2130, 9765952), (2240, 9286374), (2272, 9155580), (2485, 8370816), (2688, 7738645), (2840, 7324464), (2982, 6975680), (3360, 6190916), (3408, 6103720), (3976, 5231760), (4260, 4882976), (4480, 4643187), (4544, 4577790), (4970, 4185408), (5680, 3662232), (5964, 3487840), (6720, 3095458), (6816, 3051860), (7455, 2790272), (7952, 2615880), (8520, 2441488), (9088, 2288895), (9940, 2092704), (11360, 1831116), (11928, 1743920), (13440, 1547729), (13632, 1525930), (14910, 1395136), (15904, 1307940), (17040, 1220744), (19880, 1046352), (21799, 954240), (22720, 915558), (23856, 871960), (27264, 762965), (29820, 697568), (31808, 653970), (34080, 610372), (39760, 523176), (43598, 477120), (45440, 457779), (47712, 435980), (59640, 348784), (63616, 326985), (65397, 318080), (68160, 305186), (79520, 261588), (87196, 238560), (95424, 217990), (108995, 190848), (119280, 174392), (130794, 159040), (136320, 152593)]