390848000

素因数分解:

$2^9\times 5^3\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:261

約数の個数: 160

約数和(自身を含む): 1011149568

約数和(自身を除く): 620301568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 125, 128, 155, 160, 197, 200, 248, 250, 256, 310, 320, 394, 400, 496, 500, 512, 620, 640, 775, 788, 800, 985, 992, 1000, 1240, 1280, 1550, 1576, 1600, 1970, 1984, 2000, 2480, 2560, 3100, 3152, 3200, 3875, 3940, 3968, 4000, 4925, 4960, 6107, 6200, 6304, 6400, 7750, 7880, 7936, 8000, 9850, 9920, 12214, 12400, 12608, 12800, 15500, 15760, 15872, 16000, 19700, 19840, 24428, 24625, 24800, 25216, 30535, 31000, 31520, 32000, 39400, 39680, 48856, 49250, 49600, 50432, 61070, 62000, 63040, 64000, 78800, 79360, 97712, 98500, 99200, 100864, 122140, 124000, 126080, 152675, 157600, 195424, 197000, 198400, 244280, 248000, 252160, 305350, 315200, 390848, 394000, 396800, 488560, 496000, 504320, 610700, 630400, 763375, 781696, 788000, 977120, 992000, 1221400, 1260800, 1526750, 1563392, 1576000, 1954240, 1984000, 2442800, 2521600, 3053500, 3126784, 3152000, 3908480, 4885600, 6107000, 6304000, 7816960, 9771200, 12214000, 12608000, 15633920, 19542400, 24428000, 39084800, 48856000, 78169600, 97712000, 195424000, 390848000]

約数ペア:

[(1, 390848000), (2, 195424000), (4, 97712000), (5, 78169600), (8, 48856000), (10, 39084800), (16, 24428000), (20, 19542400), (25, 15633920), (31, 12608000), (32, 12214000), (40, 9771200), (50, 7816960), (62, 6304000), (64, 6107000), (80, 4885600), (100, 3908480), (124, 3152000), (125, 3126784), (128, 3053500), (155, 2521600), (160, 2442800), (197, 1984000), (200, 1954240), (248, 1576000), (250, 1563392), (256, 1526750), (310, 1260800), (320, 1221400), (394, 992000), (400, 977120), (496, 788000), (500, 781696), (512, 763375), (620, 630400), (640, 610700), (775, 504320), (788, 496000), (800, 488560), (985, 396800), (992, 394000), (1000, 390848), (1240, 315200), (1280, 305350), (1550, 252160), (1576, 248000), (1600, 244280), (1970, 198400), (1984, 197000), (2000, 195424), (2480, 157600), (2560, 152675), (3100, 126080), (3152, 124000), (3200, 122140), (3875, 100864), (3940, 99200), (3968, 98500), (4000, 97712), (4925, 79360), (4960, 78800), (6107, 64000), (6200, 63040), (6304, 62000), (6400, 61070), (7750, 50432), (7880, 49600), (7936, 49250), (8000, 48856), (9850, 39680), (9920, 39400), (12214, 32000), (12400, 31520), (12608, 31000), (12800, 30535), (15500, 25216), (15760, 24800), (15872, 24625), (16000, 24428), (19700, 19840)]