81230940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2803}}^1$

素因数の和:2848

約数の個数: 144

約数和(自身を含む): 293948928

約数和(自身を除く): 212717988

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 23, 28, 30, 35, 36, 42, 45, 46, 60, 63, 69, 70, 84, 90, 92, 105, 115, 126, 138, 140, 161, 180, 207, 210, 230, 252, 276, 315, 322, 345, 414, 420, 460, 483, 630, 644, 690, 805, 828, 966, 1035, 1260, 1380, 1449, 1610, 1932, 2070, 2415, 2803, 2898, 3220, 4140, 4830, 5606, 5796, 7245, 8409, 9660, 11212, 14015, 14490, 16818, 19621, 25227, 28030, 28980, 33636, 39242, 42045, 50454, 56060, 58863, 64469, 78484, 84090, 98105, 100908, 117726, 126135, 128938, 168180, 176589, 193407, 196210, 235452, 252270, 257876, 294315, 322345, 353178, 386814, 392420, 451283, 504540, 580221, 588630, 644690, 706356, 773628, 882945, 902566, 967035, 1160442, 1177260, 1289380, 1353849, 1765890, 1805132, 1934070, 2256415, 2320884, 2707698, 2901105, 3531780, 3868140, 4061547, 4512830, 5415396, 5802210, 6769245, 8123094, 9025660, 11604420, 13538490, 16246188, 20307735, 27076980, 40615470, 81230940]

約数ペア:

[(1, 81230940), (2, 40615470), (3, 27076980), (4, 20307735), (5, 16246188), (6, 13538490), (7, 11604420), (9, 9025660), (10, 8123094), (12, 6769245), (14, 5802210), (15, 5415396), (18, 4512830), (20, 4061547), (21, 3868140), (23, 3531780), (28, 2901105), (30, 2707698), (35, 2320884), (36, 2256415), (42, 1934070), (45, 1805132), (46, 1765890), (60, 1353849), (63, 1289380), (69, 1177260), (70, 1160442), (84, 967035), (90, 902566), (92, 882945), (105, 773628), (115, 706356), (126, 644690), (138, 588630), (140, 580221), (161, 504540), (180, 451283), (207, 392420), (210, 386814), (230, 353178), (252, 322345), (276, 294315), (315, 257876), (322, 252270), (345, 235452), (414, 196210), (420, 193407), (460, 176589), (483, 168180), (630, 128938), (644, 126135), (690, 117726), (805, 100908), (828, 98105), (966, 84090), (1035, 78484), (1260, 64469), (1380, 58863), (1449, 56060), (1610, 50454), (1932, 42045), (2070, 39242), (2415, 33636), (2803, 28980), (2898, 28030), (3220, 25227), (4140, 19621), (4830, 16818), (5606, 14490), (5796, 14015), (7245, 11212), (8409, 9660)]