20910240

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1117}}^1$

素因数の和:1151

約数の個数: 144

約数和(自身を含む): 76913928

約数和(自身を除く): 56003688

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, 1117, 1170, 1248, 1440, 1560, 1872, 2080, 2234, 2340, 3120, 3351, 3744, 4468, 4680, 5585, 6240, 6702, 8936, 9360, 10053, 11170, 13404, 14521, 16755, 17872, 18720, 20106, 22340, 26808, 29042, 33510, 35744, 40212, 43563, 44680, 50265, 53616, 58084, 67020, 72605, 80424, 87126, 89360, 100530, 107232, 116168, 130689, 134040, 145210, 160848, 174252, 178720, 201060, 217815, 232336, 261378, 268080, 290420, 321696, 348504, 402120, 435630, 464672, 522756, 536160, 580840, 653445, 697008, 804240, 871260, 1045512, 1161680, 1306890, 1394016, 1608480, 1742520, 2091024, 2323360, 2613780, 3485040, 4182048, 5227560, 6970080, 10455120, 20910240]

約数ペア:

[(1, 20910240), (2, 10455120), (3, 6970080), (4, 5227560), (5, 4182048), (6, 3485040), (8, 2613780), (9, 2323360), (10, 2091024), (12, 1742520), (13, 1608480), (15, 1394016), (16, 1306890), (18, 1161680), (20, 1045512), (24, 871260), (26, 804240), (30, 697008), (32, 653445), (36, 580840), (39, 536160), (40, 522756), (45, 464672), (48, 435630), (52, 402120), (60, 348504), (65, 321696), (72, 290420), (78, 268080), (80, 261378), (90, 232336), (96, 217815), (104, 201060), (117, 178720), (120, 174252), (130, 160848), (144, 145210), (156, 134040), (160, 130689), (180, 116168), (195, 107232), (208, 100530), (234, 89360), (240, 87126), (260, 80424), (288, 72605), (312, 67020), (360, 58084), (390, 53616), (416, 50265), (468, 44680), (480, 43563), (520, 40212), (585, 35744), (624, 33510), (720, 29042), (780, 26808), (936, 22340), (1040, 20106), (1117, 18720), (1170, 17872), (1248, 16755), (1440, 14521), (1560, 13404), (1872, 11170), (2080, 10053), (2234, 9360), (2340, 8936), (3120, 6702), (3351, 6240), (3744, 5585), (4468, 4680)]