78720000

素因数分解:

$2^{10}\times 3^1\times 5^4\times {\mathrm{41}}^1$

素因数の和:84

約数の個数: 220

約数和(自身を含む): 268582776

約数和(自身を除く): 189862776

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 41, 48, 50, 60, 64, 75, 80, 82, 96, 100, 120, 123, 125, 128, 150, 160, 164, 192, 200, 205, 240, 246, 250, 256, 300, 320, 328, 375, 384, 400, 410, 480, 492, 500, 512, 600, 615, 625, 640, 656, 750, 768, 800, 820, 960, 984, 1000, 1024, 1025, 1200, 1230, 1250, 1280, 1312, 1500, 1536, 1600, 1640, 1875, 1920, 1968, 2000, 2050, 2400, 2460, 2500, 2560, 2624, 3000, 3072, 3075, 3200, 3280, 3750, 3840, 3936, 4000, 4100, 4800, 4920, 5000, 5120, 5125, 5248, 6000, 6150, 6400, 6560, 7500, 7680, 7872, 8000, 8200, 9600, 9840, 10000, 10250, 10496, 12000, 12300, 12800, 13120, 15000, 15360, 15375, 15744, 16000, 16400, 19200, 19680, 20000, 20500, 20992, 24000, 24600, 25600, 25625, 26240, 30000, 30750, 31488, 32000, 32800, 38400, 39360, 40000, 41000, 41984, 48000, 49200, 51250, 52480, 60000, 61500, 62976, 64000, 65600, 76800, 76875, 78720, 80000, 82000, 96000, 98400, 102500, 104960, 120000, 123000, 125952, 128000, 131200, 153750, 157440, 160000, 164000, 192000, 196800, 205000, 209920, 240000, 246000, 262400, 307500, 314880, 320000, 328000, 384000, 393600, 410000, 480000, 492000, 524800, 615000, 629760, 640000, 656000, 787200, 820000, 960000, 984000, 1049600, 1230000, 1312000, 1574400, 1640000, 1920000, 1968000, 2460000, 2624000, 3148800, 3280000, 3936000, 4920000, 5248000, 6560000, 7872000, 9840000, 13120000, 15744000, 19680000, 26240000, 39360000, 78720000]

約数ペア:

[(1, 78720000), (2, 39360000), (3, 26240000), (4, 19680000), (5, 15744000), (6, 13120000), (8, 9840000), (10, 7872000), (12, 6560000), (15, 5248000), (16, 4920000), (20, 3936000), (24, 3280000), (25, 3148800), (30, 2624000), (32, 2460000), (40, 1968000), (41, 1920000), (48, 1640000), (50, 1574400), (60, 1312000), (64, 1230000), (75, 1049600), (80, 984000), (82, 960000), (96, 820000), (100, 787200), (120, 656000), (123, 640000), (125, 629760), (128, 615000), (150, 524800), (160, 492000), (164, 480000), (192, 410000), (200, 393600), (205, 384000), (240, 328000), (246, 320000), (250, 314880), (256, 307500), (300, 262400), (320, 246000), (328, 240000), (375, 209920), (384, 205000), (400, 196800), (410, 192000), (480, 164000), (492, 160000), (500, 157440), (512, 153750), (600, 131200), (615, 128000), (625, 125952), (640, 123000), (656, 120000), (750, 104960), (768, 102500), (800, 98400), (820, 96000), (960, 82000), (984, 80000), (1000, 78720), (1024, 76875), (1025, 76800), (1200, 65600), (1230, 64000), (1250, 62976), (1280, 61500), (1312, 60000), (1500, 52480), (1536, 51250), (1600, 49200), (1640, 48000), (1875, 41984), (1920, 41000), (1968, 40000), (2000, 39360), (2050, 38400), (2400, 32800), (2460, 32000), (2500, 31488), (2560, 30750), (2624, 30000), (3000, 26240), (3072, 25625), (3075, 25600), (3200, 24600), (3280, 24000), (3750, 20992), (3840, 20500), (3936, 20000), (4000, 19680), (4100, 19200), (4800, 16400), (4920, 16000), (5000, 15744), (5120, 15375), (5125, 15360), (5248, 15000), (6000, 13120), (6150, 12800), (6400, 12300), (6560, 12000), (7500, 10496), (7680, 10250), (7872, 10000), (8000, 9840), (8200, 9600)]