1278000

素因数分解:

$2^4\times 3^2\times 5^3\times {\mathrm{71}}^1$

素因数の和:100

約数の個数: 120

約数和(自身を含む): 4526496

約数和(自身を除く): 3248496

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 36, 40, 45, 48, 50, 60, 71, 72, 75, 80, 90, 100, 120, 125, 142, 144, 150, 180, 200, 213, 225, 240, 250, 284, 300, 355, 360, 375, 400, 426, 450, 500, 568, 600, 639, 710, 720, 750, 852, 900, 1000, 1065, 1125, 1136, 1200, 1278, 1420, 1500, 1704, 1775, 1800, 2000, 2130, 2250, 2556, 2840, 3000, 3195, 3408, 3550, 3600, 4260, 4500, 5112, 5325, 5680, 6000, 6390, 7100, 8520, 8875, 9000, 10224, 10650, 12780, 14200, 15975, 17040, 17750, 18000, 21300, 25560, 26625, 28400, 31950, 35500, 42600, 51120, 53250, 63900, 71000, 79875, 85200, 106500, 127800, 142000, 159750, 213000, 255600, 319500, 426000, 639000, 1278000]

約数ペア:

[(1, 1278000), (2, 639000), (3, 426000), (4, 319500), (5, 255600), (6, 213000), (8, 159750), (9, 142000), (10, 127800), (12, 106500), (15, 85200), (16, 79875), (18, 71000), (20, 63900), (24, 53250), (25, 51120), (30, 42600), (36, 35500), (40, 31950), (45, 28400), (48, 26625), (50, 25560), (60, 21300), (71, 18000), (72, 17750), (75, 17040), (80, 15975), (90, 14200), (100, 12780), (120, 10650), (125, 10224), (142, 9000), (144, 8875), (150, 8520), (180, 7100), (200, 6390), (213, 6000), (225, 5680), (240, 5325), (250, 5112), (284, 4500), (300, 4260), (355, 3600), (360, 3550), (375, 3408), (400, 3195), (426, 3000), (450, 2840), (500, 2556), (568, 2250), (600, 2130), (639, 2000), (710, 1800), (720, 1775), (750, 1704), (852, 1500), (900, 1420), (1000, 1278), (1065, 1200), (1125, 1136)]