215973810

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1663}}^1$

素因数の和:1729

約数の個数: 128

約数和(自身を含む): 637378560

約数和(自身を除く): 421404750

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 37, 39, 45, 54, 65, 74, 78, 90, 111, 117, 130, 135, 185, 195, 222, 234, 270, 333, 351, 370, 390, 481, 555, 585, 666, 702, 962, 999, 1110, 1170, 1443, 1663, 1665, 1755, 1998, 2405, 2886, 3326, 3330, 3510, 4329, 4810, 4989, 4995, 7215, 8315, 8658, 9978, 9990, 12987, 14430, 14967, 16630, 21619, 21645, 24945, 25974, 29934, 43238, 43290, 44901, 49890, 61531, 64857, 64935, 74835, 89802, 108095, 123062, 129714, 129870, 149670, 184593, 194571, 216190, 224505, 307655, 324285, 369186, 389142, 449010, 553779, 583713, 615310, 648570, 799903, 922965, 972855, 1107558, 1167426, 1599806, 1661337, 1845930, 1945710, 2399709, 2768895, 2918565, 3322674, 3999515, 4799418, 5537790, 5837130, 7199127, 7999030, 8306685, 11998545, 14398254, 16613370, 21597381, 23997090, 35995635, 43194762, 71991270, 107986905, 215973810]

約数ペア:

[(1, 215973810), (2, 107986905), (3, 71991270), (5, 43194762), (6, 35995635), (9, 23997090), (10, 21597381), (13, 16613370), (15, 14398254), (18, 11998545), (26, 8306685), (27, 7999030), (30, 7199127), (37, 5837130), (39, 5537790), (45, 4799418), (54, 3999515), (65, 3322674), (74, 2918565), (78, 2768895), (90, 2399709), (111, 1945710), (117, 1845930), (130, 1661337), (135, 1599806), (185, 1167426), (195, 1107558), (222, 972855), (234, 922965), (270, 799903), (333, 648570), (351, 615310), (370, 583713), (390, 553779), (481, 449010), (555, 389142), (585, 369186), (666, 324285), (702, 307655), (962, 224505), (999, 216190), (1110, 194571), (1170, 184593), (1443, 149670), (1663, 129870), (1665, 129714), (1755, 123062), (1998, 108095), (2405, 89802), (2886, 74835), (3326, 64935), (3330, 64857), (3510, 61531), (4329, 49890), (4810, 44901), (4989, 43290), (4995, 43238), (7215, 29934), (8315, 25974), (8658, 24945), (9978, 21645), (9990, 21619), (12987, 16630), (14430, 14967)]