19000000

素因数分解:

$2^6\times 5^6\times {\mathrm{19}}^1$

素因数の和:61

約数の個数: 98

約数和(自身を含む): 49608740

約数和(自身を除く): 30608740

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 32, 38, 40, 50, 64, 76, 80, 95, 100, 125, 152, 160, 190, 200, 250, 304, 320, 380, 400, 475, 500, 608, 625, 760, 800, 950, 1000, 1216, 1250, 1520, 1600, 1900, 2000, 2375, 2500, 3040, 3125, 3800, 4000, 4750, 5000, 6080, 6250, 7600, 8000, 9500, 10000, 11875, 12500, 15200, 15625, 19000, 20000, 23750, 25000, 30400, 31250, 38000, 40000, 47500, 50000, 59375, 62500, 76000, 95000, 100000, 118750, 125000, 152000, 190000, 200000, 237500, 250000, 296875, 380000, 475000, 500000, 593750, 760000, 950000, 1000000, 1187500, 1900000, 2375000, 3800000, 4750000, 9500000, 19000000]

約数ペア:

[(1, 19000000), (2, 9500000), (4, 4750000), (5, 3800000), (8, 2375000), (10, 1900000), (16, 1187500), (19, 1000000), (20, 950000), (25, 760000), (32, 593750), (38, 500000), (40, 475000), (50, 380000), (64, 296875), (76, 250000), (80, 237500), (95, 200000), (100, 190000), (125, 152000), (152, 125000), (160, 118750), (190, 100000), (200, 95000), (250, 76000), (304, 62500), (320, 59375), (380, 50000), (400, 47500), (475, 40000), (500, 38000), (608, 31250), (625, 30400), (760, 25000), (800, 23750), (950, 20000), (1000, 19000), (1216, 15625), (1250, 15200), (1520, 12500), (1600, 11875), (1900, 10000), (2000, 9500), (2375, 8000), (2500, 7600), (3040, 6250), (3125, 6080), (3800, 5000), (4000, 4750)]