20121103920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{181}}^1\times {\mathrm{479}}^1\times {\mathrm{967}}^1$

素因数の和:1643

約数の個数: 160

約数和(自身を含む): 62915973120

約数和(自身を除く): 42794869200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 181, 240, 362, 479, 543, 724, 905, 958, 967, 1086, 1437, 1448, 1810, 1916, 1934, 2172, 2395, 2715, 2874, 2896, 2901, 3620, 3832, 3868, 4344, 4790, 4835, 5430, 5748, 5802, 7185, 7240, 7664, 7736, 8688, 9580, 9670, 10860, 11496, 11604, 14370, 14480, 14505, 15472, 19160, 19340, 21720, 22992, 23208, 28740, 29010, 38320, 38680, 43440, 46416, 57480, 58020, 77360, 86699, 114960, 116040, 173398, 175027, 232080, 260097, 346796, 350054, 433495, 463193, 520194, 525081, 693592, 700108, 866990, 875135, 926386, 1040388, 1050162, 1300485, 1387184, 1389579, 1400216, 1733980, 1750270, 1852772, 2080776, 2100324, 2315965, 2600970, 2625405, 2779158, 2800432, 3467960, 3500540, 3705544, 4161552, 4200648, 4631930, 5201940, 5250810, 5558316, 6935920, 6947895, 7001080, 7411088, 8401296, 9263860, 10403880, 10501620, 11116632, 13895790, 14002160, 18527720, 20807760, 21003240, 22233264, 27791580, 37055440, 42006480, 55583160, 83837933, 111166320, 167675866, 251513799, 335351732, 419189665, 503027598, 670703464, 838379330, 1006055196, 1257568995, 1341406928, 1676758660, 2012110392, 2515137990, 3353517320, 4024220784, 5030275980, 6707034640, 10060551960, 20121103920]

約数ペア:

[(1, 20121103920), (2, 10060551960), (3, 6707034640), (4, 5030275980), (5, 4024220784), (6, 3353517320), (8, 2515137990), (10, 2012110392), (12, 1676758660), (15, 1341406928), (16, 1257568995), (20, 1006055196), (24, 838379330), (30, 670703464), (40, 503027598), (48, 419189665), (60, 335351732), (80, 251513799), (120, 167675866), (181, 111166320), (240, 83837933), (362, 55583160), (479, 42006480), (543, 37055440), (724, 27791580), (905, 22233264), (958, 21003240), (967, 20807760), (1086, 18527720), (1437, 14002160), (1448, 13895790), (1810, 11116632), (1916, 10501620), (1934, 10403880), (2172, 9263860), (2395, 8401296), (2715, 7411088), (2874, 7001080), (2896, 6947895), (2901, 6935920), (3620, 5558316), (3832, 5250810), (3868, 5201940), (4344, 4631930), (4790, 4200648), (4835, 4161552), (5430, 3705544), (5748, 3500540), (5802, 3467960), (7185, 2800432), (7240, 2779158), (7664, 2625405), (7736, 2600970), (8688, 2315965), (9580, 2100324), (9670, 2080776), (10860, 1852772), (11496, 1750270), (11604, 1733980), (14370, 1400216), (14480, 1389579), (14505, 1387184), (15472, 1300485), (19160, 1050162), (19340, 1040388), (21720, 926386), (22992, 875135), (23208, 866990), (28740, 700108), (29010, 693592), (38320, 525081), (38680, 520194), (43440, 463193), (46416, 433495), (57480, 350054), (58020, 346796), (77360, 260097), (86699, 232080), (114960, 175027), (116040, 173398)]