399000

素因数分解:

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

素因数の和:50

約数の個数: 128

約数和(自身を含む): 1497600

約数和(自身を除く): 1098600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 25, 28, 30, 35, 38, 40, 42, 50, 56, 57, 60, 70, 75, 76, 84, 95, 100, 105, 114, 120, 125, 133, 140, 150, 152, 168, 175, 190, 200, 210, 228, 250, 266, 280, 285, 300, 350, 375, 380, 399, 420, 456, 475, 500, 525, 532, 570, 600, 665, 700, 750, 760, 798, 840, 875, 950, 1000, 1050, 1064, 1140, 1330, 1400, 1425, 1500, 1596, 1750, 1900, 1995, 2100, 2280, 2375, 2625, 2660, 2850, 3000, 3192, 3325, 3500, 3800, 3990, 4200, 4750, 5250, 5320, 5700, 6650, 7000, 7125, 7980, 9500, 9975, 10500, 11400, 13300, 14250, 15960, 16625, 19000, 19950, 21000, 26600, 28500, 33250, 39900, 49875, 57000, 66500, 79800, 99750, 133000, 199500, 399000]

約数ペア:

[(1, 399000), (2, 199500), (3, 133000), (4, 99750), (5, 79800), (6, 66500), (7, 57000), (8, 49875), (10, 39900), (12, 33250), (14, 28500), (15, 26600), (19, 21000), (20, 19950), (21, 19000), (24, 16625), (25, 15960), (28, 14250), (30, 13300), (35, 11400), (38, 10500), (40, 9975), (42, 9500), (50, 7980), (56, 7125), (57, 7000), (60, 6650), (70, 5700), (75, 5320), (76, 5250), (84, 4750), (95, 4200), (100, 3990), (105, 3800), (114, 3500), (120, 3325), (125, 3192), (133, 3000), (140, 2850), (150, 2660), (152, 2625), (168, 2375), (175, 2280), (190, 2100), (200, 1995), (210, 1900), (228, 1750), (250, 1596), (266, 1500), (280, 1425), (285, 1400), (300, 1330), (350, 1140), (375, 1064), (380, 1050), (399, 1000), (420, 950), (456, 875), (475, 840), (500, 798), (525, 760), (532, 750), (570, 700), (600, 665)]