256529520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{27407}}^1$

素因数の和:27439

約数の個数: 120

約数和(自身を含む): 927815616

約数和(自身を除く): 671286096

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 104, 117, 120, 130, 144, 156, 180, 195, 208, 234, 240, 260, 312, 360, 390, 468, 520, 585, 624, 720, 780, 936, 1040, 1170, 1560, 1872, 2340, 3120, 4680, 9360, 27407, 54814, 82221, 109628, 137035, 164442, 219256, 246663, 274070, 328884, 356291, 411105, 438512, 493326, 548140, 657768, 712582, 822210, 986652, 1068873, 1096280, 1233315, 1315536, 1425164, 1644420, 1781455, 1973304, 2137746, 2192560, 2466630, 2850328, 3206619, 3288840, 3562910, 3946608, 4275492, 4933260, 5344365, 5700656, 6413238, 6577680, 7125820, 8550984, 9866520, 10688730, 12826476, 14251640, 16033095, 17101968, 19733040, 21377460, 25652952, 28503280, 32066190, 42754920, 51305904, 64132380, 85509840, 128264760, 256529520]

約数ペア:

[(1, 256529520), (2, 128264760), (3, 85509840), (4, 64132380), (5, 51305904), (6, 42754920), (8, 32066190), (9, 28503280), (10, 25652952), (12, 21377460), (13, 19733040), (15, 17101968), (16, 16033095), (18, 14251640), (20, 12826476), (24, 10688730), (26, 9866520), (30, 8550984), (36, 7125820), (39, 6577680), (40, 6413238), (45, 5700656), (48, 5344365), (52, 4933260), (60, 4275492), (65, 3946608), (72, 3562910), (78, 3288840), (80, 3206619), (90, 2850328), (104, 2466630), (117, 2192560), (120, 2137746), (130, 1973304), (144, 1781455), (156, 1644420), (180, 1425164), (195, 1315536), (208, 1233315), (234, 1096280), (240, 1068873), (260, 986652), (312, 822210), (360, 712582), (390, 657768), (468, 548140), (520, 493326), (585, 438512), (624, 411105), (720, 356291), (780, 328884), (936, 274070), (1040, 246663), (1170, 219256), (1560, 164442), (1872, 137035), (2340, 109628), (3120, 82221), (4680, 54814), (9360, 27407)]