81760000

素因数分解:

$2^8\times 5^4\times 7^1\times {\mathrm{73}}^1$

素因数の和:116

約数の個数: 180

約数和(自身を含む): 236261872

約数和(自身を除く): 154501872

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 64, 70, 73, 80, 100, 112, 125, 128, 140, 146, 160, 175, 200, 224, 250, 256, 280, 292, 320, 350, 365, 400, 448, 500, 511, 560, 584, 625, 640, 700, 730, 800, 875, 896, 1000, 1022, 1120, 1168, 1250, 1280, 1400, 1460, 1600, 1750, 1792, 1825, 2000, 2044, 2240, 2336, 2500, 2555, 2800, 2920, 3200, 3500, 3650, 4000, 4088, 4375, 4480, 4672, 5000, 5110, 5600, 5840, 6400, 7000, 7300, 8000, 8176, 8750, 8960, 9125, 9344, 10000, 10220, 11200, 11680, 12775, 14000, 14600, 16000, 16352, 17500, 18250, 18688, 20000, 20440, 22400, 23360, 25550, 28000, 29200, 32000, 32704, 35000, 36500, 40000, 40880, 44800, 45625, 46720, 51100, 56000, 58400, 63875, 65408, 70000, 73000, 80000, 81760, 91250, 93440, 102200, 112000, 116800, 127750, 130816, 140000, 146000, 160000, 163520, 182500, 204400, 224000, 233600, 255500, 280000, 292000, 319375, 327040, 365000, 408800, 467200, 511000, 560000, 584000, 638750, 654080, 730000, 817600, 1022000, 1120000, 1168000, 1277500, 1460000, 1635200, 2044000, 2336000, 2555000, 2920000, 3270400, 4088000, 5110000, 5840000, 8176000, 10220000, 11680000, 16352000, 20440000, 40880000, 81760000]

約数ペア:

[(1, 81760000), (2, 40880000), (4, 20440000), (5, 16352000), (7, 11680000), (8, 10220000), (10, 8176000), (14, 5840000), (16, 5110000), (20, 4088000), (25, 3270400), (28, 2920000), (32, 2555000), (35, 2336000), (40, 2044000), (50, 1635200), (56, 1460000), (64, 1277500), (70, 1168000), (73, 1120000), (80, 1022000), (100, 817600), (112, 730000), (125, 654080), (128, 638750), (140, 584000), (146, 560000), (160, 511000), (175, 467200), (200, 408800), (224, 365000), (250, 327040), (256, 319375), (280, 292000), (292, 280000), (320, 255500), (350, 233600), (365, 224000), (400, 204400), (448, 182500), (500, 163520), (511, 160000), (560, 146000), (584, 140000), (625, 130816), (640, 127750), (700, 116800), (730, 112000), (800, 102200), (875, 93440), (896, 91250), (1000, 81760), (1022, 80000), (1120, 73000), (1168, 70000), (1250, 65408), (1280, 63875), (1400, 58400), (1460, 56000), (1600, 51100), (1750, 46720), (1792, 45625), (1825, 44800), (2000, 40880), (2044, 40000), (2240, 36500), (2336, 35000), (2500, 32704), (2555, 32000), (2800, 29200), (2920, 28000), (3200, 25550), (3500, 23360), (3650, 22400), (4000, 20440), (4088, 20000), (4375, 18688), (4480, 18250), (4672, 17500), (5000, 16352), (5110, 16000), (5600, 14600), (5840, 14000), (6400, 12775), (7000, 11680), (7300, 11200), (8000, 10220), (8176, 10000), (8750, 9344), (8960, 9125)]