380000000

素因数分解:

$2^8\times 5^7\times {\mathrm{19}}^1$

素因数の和:70

約数の個数: 144

約数和(自身を含む): 998044320

約数和(自身を除く): 618044320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 32, 38, 40, 50, 64, 76, 80, 95, 100, 125, 128, 152, 160, 190, 200, 250, 256, 304, 320, 380, 400, 475, 500, 608, 625, 640, 760, 800, 950, 1000, 1216, 1250, 1280, 1520, 1600, 1900, 2000, 2375, 2432, 2500, 3040, 3125, 3200, 3800, 4000, 4750, 4864, 5000, 6080, 6250, 6400, 7600, 8000, 9500, 10000, 11875, 12160, 12500, 15200, 15625, 16000, 19000, 20000, 23750, 24320, 25000, 30400, 31250, 32000, 38000, 40000, 47500, 50000, 59375, 60800, 62500, 76000, 78125, 80000, 95000, 100000, 118750, 121600, 125000, 152000, 156250, 160000, 190000, 200000, 237500, 250000, 296875, 304000, 312500, 380000, 400000, 475000, 500000, 593750, 608000, 625000, 760000, 800000, 950000, 1000000, 1187500, 1250000, 1484375, 1520000, 1900000, 2000000, 2375000, 2500000, 2968750, 3040000, 3800000, 4000000, 4750000, 5000000, 5937500, 7600000, 9500000, 10000000, 11875000, 15200000, 19000000, 20000000, 23750000, 38000000, 47500000, 76000000, 95000000, 190000000, 380000000]

約数ペア:

[(1, 380000000), (2, 190000000), (4, 95000000), (5, 76000000), (8, 47500000), (10, 38000000), (16, 23750000), (19, 20000000), (20, 19000000), (25, 15200000), (32, 11875000), (38, 10000000), (40, 9500000), (50, 7600000), (64, 5937500), (76, 5000000), (80, 4750000), (95, 4000000), (100, 3800000), (125, 3040000), (128, 2968750), (152, 2500000), (160, 2375000), (190, 2000000), (200, 1900000), (250, 1520000), (256, 1484375), (304, 1250000), (320, 1187500), (380, 1000000), (400, 950000), (475, 800000), (500, 760000), (608, 625000), (625, 608000), (640, 593750), (760, 500000), (800, 475000), (950, 400000), (1000, 380000), (1216, 312500), (1250, 304000), (1280, 296875), (1520, 250000), (1600, 237500), (1900, 200000), (2000, 190000), (2375, 160000), (2432, 156250), (2500, 152000), (3040, 125000), (3125, 121600), (3200, 118750), (3800, 100000), (4000, 95000), (4750, 80000), (4864, 78125), (5000, 76000), (6080, 62500), (6250, 60800), (6400, 59375), (7600, 50000), (8000, 47500), (9500, 40000), (10000, 38000), (11875, 32000), (12160, 31250), (12500, 30400), (15200, 25000), (15625, 24320), (16000, 23750), (19000, 20000)]