81977940

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{373}}^1$

素因数の和:439

約数の個数: 192

約数和(自身を含む): 286513920

約数和(自身を除く): 204535980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 37, 44, 45, 54, 55, 60, 66, 74, 90, 99, 108, 110, 111, 132, 135, 148, 165, 180, 185, 198, 220, 222, 270, 297, 330, 333, 370, 373, 396, 407, 444, 495, 540, 555, 594, 660, 666, 740, 746, 814, 990, 999, 1110, 1119, 1188, 1221, 1332, 1485, 1492, 1628, 1665, 1865, 1980, 1998, 2035, 2220, 2238, 2442, 2970, 3330, 3357, 3663, 3730, 3996, 4070, 4103, 4476, 4884, 4995, 5595, 5940, 6105, 6660, 6714, 7326, 7460, 8140, 8206, 9990, 10071, 10989, 11190, 12210, 12309, 13428, 13801, 14652, 16412, 16785, 18315, 19980, 20142, 20515, 21978, 22380, 24420, 24618, 27602, 33570, 36630, 36927, 40284, 41030, 41403, 43956, 49236, 50355, 54945, 55204, 61545, 67140, 69005, 73260, 73854, 82060, 82806, 100710, 109890, 110781, 123090, 124209, 138010, 147708, 151811, 165612, 184635, 201420, 207015, 219780, 221562, 246180, 248418, 276020, 303622, 369270, 372627, 414030, 443124, 455433, 496836, 553905, 607244, 621045, 738540, 745254, 759055, 828060, 910866, 1107810, 1242090, 1366299, 1490508, 1518110, 1821732, 1863135, 2215620, 2277165, 2484180, 2732598, 3036220, 3726270, 4098897, 4554330, 5465196, 6831495, 7452540, 8197794, 9108660, 13662990, 16395588, 20494485, 27325980, 40988970, 81977940]

約数ペア:

[(1, 81977940), (2, 40988970), (3, 27325980), (4, 20494485), (5, 16395588), (6, 13662990), (9, 9108660), (10, 8197794), (11, 7452540), (12, 6831495), (15, 5465196), (18, 4554330), (20, 4098897), (22, 3726270), (27, 3036220), (30, 2732598), (33, 2484180), (36, 2277165), (37, 2215620), (44, 1863135), (45, 1821732), (54, 1518110), (55, 1490508), (60, 1366299), (66, 1242090), (74, 1107810), (90, 910866), (99, 828060), (108, 759055), (110, 745254), (111, 738540), (132, 621045), (135, 607244), (148, 553905), (165, 496836), (180, 455433), (185, 443124), (198, 414030), (220, 372627), (222, 369270), (270, 303622), (297, 276020), (330, 248418), (333, 246180), (370, 221562), (373, 219780), (396, 207015), (407, 201420), (444, 184635), (495, 165612), (540, 151811), (555, 147708), (594, 138010), (660, 124209), (666, 123090), (740, 110781), (746, 109890), (814, 100710), (990, 82806), (999, 82060), (1110, 73854), (1119, 73260), (1188, 69005), (1221, 67140), (1332, 61545), (1485, 55204), (1492, 54945), (1628, 50355), (1665, 49236), (1865, 43956), (1980, 41403), (1998, 41030), (2035, 40284), (2220, 36927), (2238, 36630), (2442, 33570), (2970, 27602), (3330, 24618), (3357, 24420), (3663, 22380), (3730, 21978), (3996, 20515), (4070, 20142), (4103, 19980), (4476, 18315), (4884, 16785), (4995, 16412), (5595, 14652), (5940, 13801), (6105, 13428), (6660, 12309), (6714, 12210), (7326, 11190), (7460, 10989), (8140, 10071), (8206, 9990)]