38720000

素因数分解:

$2^9\times 5^4\times {\mathrm{11}}^2$

素因数の和:60

約数の個数: 150

約数和(自身を含む): 106262079

約数和(自身を除く): 67542079

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 64, 80, 88, 100, 110, 121, 125, 128, 160, 176, 200, 220, 242, 250, 256, 275, 320, 352, 400, 440, 484, 500, 512, 550, 605, 625, 640, 704, 800, 880, 968, 1000, 1100, 1210, 1250, 1280, 1375, 1408, 1600, 1760, 1936, 2000, 2200, 2420, 2500, 2560, 2750, 2816, 3025, 3200, 3520, 3872, 4000, 4400, 4840, 5000, 5500, 5632, 6050, 6400, 6875, 7040, 7744, 8000, 8800, 9680, 10000, 11000, 12100, 12800, 13750, 14080, 15125, 15488, 16000, 17600, 19360, 20000, 22000, 24200, 27500, 28160, 30250, 30976, 32000, 35200, 38720, 40000, 44000, 48400, 55000, 60500, 61952, 64000, 70400, 75625, 77440, 80000, 88000, 96800, 110000, 121000, 140800, 151250, 154880, 160000, 176000, 193600, 220000, 242000, 302500, 309760, 320000, 352000, 387200, 440000, 484000, 605000, 704000, 774400, 880000, 968000, 1210000, 1548800, 1760000, 1936000, 2420000, 3520000, 3872000, 4840000, 7744000, 9680000, 19360000, 38720000]

約数ペア:

[(1, 38720000), (2, 19360000), (4, 9680000), (5, 7744000), (8, 4840000), (10, 3872000), (11, 3520000), (16, 2420000), (20, 1936000), (22, 1760000), (25, 1548800), (32, 1210000), (40, 968000), (44, 880000), (50, 774400), (55, 704000), (64, 605000), (80, 484000), (88, 440000), (100, 387200), (110, 352000), (121, 320000), (125, 309760), (128, 302500), (160, 242000), (176, 220000), (200, 193600), (220, 176000), (242, 160000), (250, 154880), (256, 151250), (275, 140800), (320, 121000), (352, 110000), (400, 96800), (440, 88000), (484, 80000), (500, 77440), (512, 75625), (550, 70400), (605, 64000), (625, 61952), (640, 60500), (704, 55000), (800, 48400), (880, 44000), (968, 40000), (1000, 38720), (1100, 35200), (1210, 32000), (1250, 30976), (1280, 30250), (1375, 28160), (1408, 27500), (1600, 24200), (1760, 22000), (1936, 20000), (2000, 19360), (2200, 17600), (2420, 16000), (2500, 15488), (2560, 15125), (2750, 14080), (2816, 13750), (3025, 12800), (3200, 12100), (3520, 11000), (3872, 10000), (4000, 9680), (4400, 8800), (4840, 8000), (5000, 7744), (5500, 7040), (5632, 6875), (6050, 6400)]