289078020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{20857}}^1$

素因数の和:20890

約数の個数: 144

約数和(自身を含む): 1093292928

約数和(自身を除く): 804214908

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 28, 30, 33, 35, 36, 42, 44, 45, 55, 60, 63, 66, 70, 77, 84, 90, 99, 105, 110, 126, 132, 140, 154, 165, 180, 198, 210, 220, 231, 252, 308, 315, 330, 385, 396, 420, 462, 495, 630, 660, 693, 770, 924, 990, 1155, 1260, 1386, 1540, 1980, 2310, 2772, 3465, 4620, 6930, 13860, 20857, 41714, 62571, 83428, 104285, 125142, 145999, 187713, 208570, 229427, 250284, 291998, 312855, 375426, 417140, 437997, 458854, 583996, 625710, 688281, 729995, 750852, 875994, 917708, 938565, 1147135, 1251420, 1313991, 1376562, 1459990, 1605989, 1751988, 1877130, 2064843, 2189985, 2294270, 2627982, 2753124, 2919980, 3211978, 3441405, 3754260, 4129686, 4379970, 4588540, 4817967, 5255964, 6423956, 6569955, 6882810, 8029945, 8259372, 8759940, 9635934, 10324215, 13139910, 13765620, 14453901, 16059890, 19271868, 20648430, 24089835, 26279820, 28907802, 32119780, 41296860, 48179670, 57815604, 72269505, 96359340, 144539010, 289078020]

約数ペア:

[(1, 289078020), (2, 144539010), (3, 96359340), (4, 72269505), (5, 57815604), (6, 48179670), (7, 41296860), (9, 32119780), (10, 28907802), (11, 26279820), (12, 24089835), (14, 20648430), (15, 19271868), (18, 16059890), (20, 14453901), (21, 13765620), (22, 13139910), (28, 10324215), (30, 9635934), (33, 8759940), (35, 8259372), (36, 8029945), (42, 6882810), (44, 6569955), (45, 6423956), (55, 5255964), (60, 4817967), (63, 4588540), (66, 4379970), (70, 4129686), (77, 3754260), (84, 3441405), (90, 3211978), (99, 2919980), (105, 2753124), (110, 2627982), (126, 2294270), (132, 2189985), (140, 2064843), (154, 1877130), (165, 1751988), (180, 1605989), (198, 1459990), (210, 1376562), (220, 1313991), (231, 1251420), (252, 1147135), (308, 938565), (315, 917708), (330, 875994), (385, 750852), (396, 729995), (420, 688281), (462, 625710), (495, 583996), (630, 458854), (660, 437997), (693, 417140), (770, 375426), (924, 312855), (990, 291998), (1155, 250284), (1260, 229427), (1386, 208570), (1540, 187713), (1980, 145999), (2310, 125142), (2772, 104285), (3465, 83428), (4620, 62571), (6930, 41714), (13860, 20857)]