87731820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{751}}^1$

素因数の和:836

約数の個数: 144

約数和(自身を含む): 295626240

約数和(自身を除く): 207894420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 59, 60, 66, 90, 99, 110, 118, 132, 165, 177, 180, 198, 220, 236, 295, 330, 354, 396, 495, 531, 590, 649, 660, 708, 751, 885, 990, 1062, 1180, 1298, 1502, 1770, 1947, 1980, 2124, 2253, 2596, 2655, 3004, 3245, 3540, 3755, 3894, 4506, 5310, 5841, 6490, 6759, 7510, 7788, 8261, 9012, 9735, 10620, 11265, 11682, 12980, 13518, 15020, 16522, 19470, 22530, 23364, 24783, 27036, 29205, 33044, 33795, 38940, 41305, 44309, 45060, 49566, 58410, 67590, 74349, 82610, 88618, 99132, 116820, 123915, 132927, 135180, 148698, 165220, 177236, 221545, 247830, 265854, 297396, 371745, 398781, 443090, 487399, 495660, 531708, 664635, 743490, 797562, 886180, 974798, 1329270, 1462197, 1486980, 1595124, 1949596, 1993905, 2436995, 2658540, 2924394, 3987810, 4386591, 4873990, 5848788, 7310985, 7975620, 8773182, 9747980, 14621970, 17546364, 21932955, 29243940, 43865910, 87731820]

約数ペア:

[(1, 87731820), (2, 43865910), (3, 29243940), (4, 21932955), (5, 17546364), (6, 14621970), (9, 9747980), (10, 8773182), (11, 7975620), (12, 7310985), (15, 5848788), (18, 4873990), (20, 4386591), (22, 3987810), (30, 2924394), (33, 2658540), (36, 2436995), (44, 1993905), (45, 1949596), (55, 1595124), (59, 1486980), (60, 1462197), (66, 1329270), (90, 974798), (99, 886180), (110, 797562), (118, 743490), (132, 664635), (165, 531708), (177, 495660), (180, 487399), (198, 443090), (220, 398781), (236, 371745), (295, 297396), (330, 265854), (354, 247830), (396, 221545), (495, 177236), (531, 165220), (590, 148698), (649, 135180), (660, 132927), (708, 123915), (751, 116820), (885, 99132), (990, 88618), (1062, 82610), (1180, 74349), (1298, 67590), (1502, 58410), (1770, 49566), (1947, 45060), (1980, 44309), (2124, 41305), (2253, 38940), (2596, 33795), (2655, 33044), (3004, 29205), (3245, 27036), (3540, 24783), (3755, 23364), (3894, 22530), (4506, 19470), (5310, 16522), (5841, 15020), (6490, 13518), (6759, 12980), (7510, 11682), (7788, 11265), (8261, 10620), (9012, 9735)]