20481699840

素因数分解:

$2^{12}\times 3^1\times 5^1\times 7^1\times {\mathrm{47623}}^1$

素因数の和:47662

約数の個数: 208

約数和(自身を含む): 74896931328

約数和(自身を除く): 54415231488

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, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 256, 280, 320, 336, 384, 420, 448, 480, 512, 560, 640, 672, 768, 840, 896, 960, 1024, 1120, 1280, 1344, 1536, 1680, 1792, 1920, 2048, 2240, 2560, 2688, 3072, 3360, 3584, 3840, 4096, 4480, 5120, 5376, 6144, 6720, 7168, 7680, 8960, 10240, 10752, 12288, 13440, 14336, 15360, 17920, 20480, 21504, 26880, 28672, 30720, 35840, 43008, 47623, 53760, 61440, 71680, 86016, 95246, 107520, 142869, 143360, 190492, 215040, 238115, 285738, 333361, 380984, 430080, 476230, 571476, 666722, 714345, 761968, 952460, 1000083, 1142952, 1333444, 1428690, 1523936, 1666805, 1904920, 2000166, 2285904, 2666888, 2857380, 3047872, 3333610, 3809840, 4000332, 4571808, 5000415, 5333776, 5714760, 6095744, 6667220, 7619680, 8000664, 9143616, 10000830, 10667552, 11429520, 12191488, 13334440, 15239360, 16001328, 18287232, 20001660, 21335104, 22859040, 24382976, 26668880, 30478720, 32002656, 36574464, 40003320, 42670208, 45718080, 48765952, 53337760, 60957440, 64005312, 73148928, 80006640, 85340416, 91436160, 97531904, 106675520, 121914880, 128010624, 146297856, 160013280, 170680832, 182872320, 195063808, 213351040, 243829760, 256021248, 292595712, 320026560, 341361664, 365744640, 426702080, 487659520, 512042496, 585191424, 640053120, 682723328, 731489280, 853404160, 975319040, 1024084992, 1280106240, 1365446656, 1462978560, 1706808320, 2048169984, 2560212480, 2925957120, 3413616640, 4096339968, 5120424960, 6827233280, 10240849920, 20481699840]

約数ペア:

[(1, 20481699840), (2, 10240849920), (3, 6827233280), (4, 5120424960), (5, 4096339968), (6, 3413616640), (7, 2925957120), (8, 2560212480), (10, 2048169984), (12, 1706808320), (14, 1462978560), (15, 1365446656), (16, 1280106240), (20, 1024084992), (21, 975319040), (24, 853404160), (28, 731489280), (30, 682723328), (32, 640053120), (35, 585191424), (40, 512042496), (42, 487659520), (48, 426702080), (56, 365744640), (60, 341361664), (64, 320026560), (70, 292595712), (80, 256021248), (84, 243829760), (96, 213351040), (105, 195063808), (112, 182872320), (120, 170680832), (128, 160013280), (140, 146297856), (160, 128010624), (168, 121914880), (192, 106675520), (210, 97531904), (224, 91436160), (240, 85340416), (256, 80006640), (280, 73148928), (320, 64005312), (336, 60957440), (384, 53337760), (420, 48765952), (448, 45718080), (480, 42670208), (512, 40003320), (560, 36574464), (640, 32002656), (672, 30478720), (768, 26668880), (840, 24382976), (896, 22859040), (960, 21335104), (1024, 20001660), (1120, 18287232), (1280, 16001328), (1344, 15239360), (1536, 13334440), (1680, 12191488), (1792, 11429520), (1920, 10667552), (2048, 10000830), (2240, 9143616), (2560, 8000664), (2688, 7619680), (3072, 6667220), (3360, 6095744), (3584, 5714760), (3840, 5333776), (4096, 5000415), (4480, 4571808), (5120, 4000332), (5376, 3809840), (6144, 3333610), (6720, 3047872), (7168, 2857380), (7680, 2666888), (8960, 2285904), (10240, 2000166), (10752, 1904920), (12288, 1666805), (13440, 1523936), (14336, 1428690), (15360, 1333444), (17920, 1142952), (20480, 1000083), (21504, 952460), (26880, 761968), (28672, 714345), (30720, 666722), (35840, 571476), (43008, 476230), (47623, 430080), (53760, 380984), (61440, 333361), (71680, 285738), (86016, 238115), (95246, 215040), (107520, 190492), (142869, 143360)]