31131360

素因数分解:

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

素因数の和:1697

約数の個数: 144

約数和(自身を含む): 114476544

約数和(自身を除く): 83345184

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 96, 104, 117, 120, 130, 144, 156, 160, 180, 195, 208, 234, 240, 260, 288, 312, 360, 390, 416, 468, 480, 520, 585, 624, 720, 780, 936, 1040, 1170, 1248, 1440, 1560, 1663, 1872, 2080, 2340, 3120, 3326, 3744, 4680, 4989, 6240, 6652, 8315, 9360, 9978, 13304, 14967, 16630, 18720, 19956, 21619, 24945, 26608, 29934, 33260, 39912, 43238, 49890, 53216, 59868, 64857, 66520, 74835, 79824, 86476, 99780, 108095, 119736, 129714, 133040, 149670, 159648, 172952, 194571, 199560, 216190, 239472, 259428, 266080, 299340, 324285, 345904, 389142, 399120, 432380, 478944, 518856, 598680, 648570, 691808, 778284, 798240, 864760, 972855, 1037712, 1197360, 1297140, 1556568, 1729520, 1945710, 2075424, 2394720, 2594280, 3113136, 3459040, 3891420, 5188560, 6226272, 7782840, 10377120, 15565680, 31131360]

約数ペア:

[(1, 31131360), (2, 15565680), (3, 10377120), (4, 7782840), (5, 6226272), (6, 5188560), (8, 3891420), (9, 3459040), (10, 3113136), (12, 2594280), (13, 2394720), (15, 2075424), (16, 1945710), (18, 1729520), (20, 1556568), (24, 1297140), (26, 1197360), (30, 1037712), (32, 972855), (36, 864760), (39, 798240), (40, 778284), (45, 691808), (48, 648570), (52, 598680), (60, 518856), (65, 478944), (72, 432380), (78, 399120), (80, 389142), (90, 345904), (96, 324285), (104, 299340), (117, 266080), (120, 259428), (130, 239472), (144, 216190), (156, 199560), (160, 194571), (180, 172952), (195, 159648), (208, 149670), (234, 133040), (240, 129714), (260, 119736), (288, 108095), (312, 99780), (360, 86476), (390, 79824), (416, 74835), (468, 66520), (480, 64857), (520, 59868), (585, 53216), (624, 49890), (720, 43238), (780, 39912), (936, 33260), (1040, 29934), (1170, 26608), (1248, 24945), (1440, 21619), (1560, 19956), (1663, 18720), (1872, 16630), (2080, 14967), (2340, 13304), (3120, 9978), (3326, 9360), (3744, 8315), (4680, 6652), (4989, 6240)]