19950000

素因数分解:

$2^4\times 3^1\times 5^5\times 7^1\times {\mathrm{19}}^1$

素因数の和:62

約数の個数: 240

約数和(自身を含む): 77495040

約数和(自身を除く): 57545040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 25, 28, 30, 35, 38, 40, 42, 48, 50, 56, 57, 60, 70, 75, 76, 80, 84, 95, 100, 105, 112, 114, 120, 125, 133, 140, 150, 152, 168, 175, 190, 200, 210, 228, 240, 250, 266, 280, 285, 300, 304, 336, 350, 375, 380, 399, 400, 420, 456, 475, 500, 525, 532, 560, 570, 600, 625, 665, 700, 750, 760, 798, 840, 875, 912, 950, 1000, 1050, 1064, 1140, 1200, 1250, 1330, 1400, 1425, 1500, 1520, 1596, 1680, 1750, 1875, 1900, 1995, 2000, 2100, 2128, 2280, 2375, 2500, 2625, 2660, 2800, 2850, 3000, 3125, 3192, 3325, 3500, 3750, 3800, 3990, 4200, 4375, 4560, 4750, 5000, 5250, 5320, 5700, 6000, 6250, 6384, 6650, 7000, 7125, 7500, 7600, 7980, 8400, 8750, 9375, 9500, 9975, 10000, 10500, 10640, 11400, 11875, 12500, 13125, 13300, 14000, 14250, 15000, 15960, 16625, 17500, 18750, 19000, 19950, 21000, 21875, 22800, 23750, 25000, 26250, 26600, 28500, 30000, 31920, 33250, 35000, 35625, 37500, 38000, 39900, 42000, 43750, 47500, 49875, 50000, 52500, 53200, 57000, 59375, 65625, 66500, 70000, 71250, 75000, 79800, 83125, 87500, 95000, 99750, 105000, 114000, 118750, 131250, 133000, 142500, 150000, 159600, 166250, 175000, 178125, 190000, 199500, 210000, 237500, 249375, 262500, 266000, 285000, 332500, 350000, 356250, 399000, 415625, 475000, 498750, 525000, 570000, 665000, 712500, 798000, 831250, 950000, 997500, 1050000, 1246875, 1330000, 1425000, 1662500, 1995000, 2493750, 2850000, 3325000, 3990000, 4987500, 6650000, 9975000, 19950000]

約数ペア:

[(1, 19950000), (2, 9975000), (3, 6650000), (4, 4987500), (5, 3990000), (6, 3325000), (7, 2850000), (8, 2493750), (10, 1995000), (12, 1662500), (14, 1425000), (15, 1330000), (16, 1246875), (19, 1050000), (20, 997500), (21, 950000), (24, 831250), (25, 798000), (28, 712500), (30, 665000), (35, 570000), (38, 525000), (40, 498750), (42, 475000), (48, 415625), (50, 399000), (56, 356250), (57, 350000), (60, 332500), (70, 285000), (75, 266000), (76, 262500), (80, 249375), (84, 237500), (95, 210000), (100, 199500), (105, 190000), (112, 178125), (114, 175000), (120, 166250), (125, 159600), (133, 150000), (140, 142500), (150, 133000), (152, 131250), (168, 118750), (175, 114000), (190, 105000), (200, 99750), (210, 95000), (228, 87500), (240, 83125), (250, 79800), (266, 75000), (280, 71250), (285, 70000), (300, 66500), (304, 65625), (336, 59375), (350, 57000), (375, 53200), (380, 52500), (399, 50000), (400, 49875), (420, 47500), (456, 43750), (475, 42000), (500, 39900), (525, 38000), (532, 37500), (560, 35625), (570, 35000), (600, 33250), (625, 31920), (665, 30000), (700, 28500), (750, 26600), (760, 26250), (798, 25000), (840, 23750), (875, 22800), (912, 21875), (950, 21000), (1000, 19950), (1050, 19000), (1064, 18750), (1140, 17500), (1200, 16625), (1250, 15960), (1330, 15000), (1400, 14250), (1425, 14000), (1500, 13300), (1520, 13125), (1596, 12500), (1680, 11875), (1750, 11400), (1875, 10640), (1900, 10500), (1995, 10000), (2000, 9975), (2100, 9500), (2128, 9375), (2280, 8750), (2375, 8400), (2500, 7980), (2625, 7600), (2660, 7500), (2800, 7125), (2850, 7000), (3000, 6650), (3125, 6384), (3192, 6250), (3325, 6000), (3500, 5700), (3750, 5320), (3800, 5250), (3990, 5000), (4200, 4750), (4375, 4560)]