81815580

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{5903}}^1$

素因数の和:5936

約数の個数: 144

約数和(自身を含む): 309464064

約数和(自身を除く): 227648484

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, 5903, 6930, 11806, 13860, 17709, 23612, 29515, 35418, 41321, 53127, 59030, 64933, 70836, 82642, 88545, 106254, 118060, 123963, 129866, 165284, 177090, 194799, 206605, 212508, 247926, 259732, 265635, 324665, 354180, 371889, 389598, 413210, 454531, 495852, 531270, 584397, 619815, 649330, 743778, 779196, 826420, 909062, 973995, 1062540, 1168794, 1239630, 1298660, 1363593, 1487556, 1818124, 1859445, 1947990, 2272655, 2337588, 2479260, 2727186, 2921985, 3718890, 3895980, 4090779, 4545310, 5454372, 5843970, 6817965, 7437780, 8181558, 9090620, 11687940, 13635930, 16363116, 20453895, 27271860, 40907790, 81815580]

約数ペア:

[(1, 81815580), (2, 40907790), (3, 27271860), (4, 20453895), (5, 16363116), (6, 13635930), (7, 11687940), (9, 9090620), (10, 8181558), (11, 7437780), (12, 6817965), (14, 5843970), (15, 5454372), (18, 4545310), (20, 4090779), (21, 3895980), (22, 3718890), (28, 2921985), (30, 2727186), (33, 2479260), (35, 2337588), (36, 2272655), (42, 1947990), (44, 1859445), (45, 1818124), (55, 1487556), (60, 1363593), (63, 1298660), (66, 1239630), (70, 1168794), (77, 1062540), (84, 973995), (90, 909062), (99, 826420), (105, 779196), (110, 743778), (126, 649330), (132, 619815), (140, 584397), (154, 531270), (165, 495852), (180, 454531), (198, 413210), (210, 389598), (220, 371889), (231, 354180), (252, 324665), (308, 265635), (315, 259732), (330, 247926), (385, 212508), (396, 206605), (420, 194799), (462, 177090), (495, 165284), (630, 129866), (660, 123963), (693, 118060), (770, 106254), (924, 88545), (990, 82642), (1155, 70836), (1260, 64933), (1386, 59030), (1540, 53127), (1980, 41321), (2310, 35418), (2772, 29515), (3465, 23612), (4620, 17709), (5903, 13860), (6930, 11806)]