398691840

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{51913}}^1$

素因数の和:51939

約数の個数: 80

約数和(自身を含む): 1274592528

約数和(自身を除く): 875900688

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 512, 640, 768, 960, 1280, 1536, 1920, 2560, 3840, 7680, 51913, 103826, 155739, 207652, 259565, 311478, 415304, 519130, 622956, 778695, 830608, 1038260, 1245912, 1557390, 1661216, 2076520, 2491824, 3114780, 3322432, 4153040, 4983648, 6229560, 6644864, 8306080, 9967296, 12459120, 13289728, 16612160, 19934592, 24918240, 26579456, 33224320, 39869184, 49836480, 66448640, 79738368, 99672960, 132897280, 199345920, 398691840]

約数ペア:

[(1, 398691840), (2, 199345920), (3, 132897280), (4, 99672960), (5, 79738368), (6, 66448640), (8, 49836480), (10, 39869184), (12, 33224320), (15, 26579456), (16, 24918240), (20, 19934592), (24, 16612160), (30, 13289728), (32, 12459120), (40, 9967296), (48, 8306080), (60, 6644864), (64, 6229560), (80, 4983648), (96, 4153040), (120, 3322432), (128, 3114780), (160, 2491824), (192, 2076520), (240, 1661216), (256, 1557390), (320, 1245912), (384, 1038260), (480, 830608), (512, 778695), (640, 622956), (768, 519130), (960, 415304), (1280, 311478), (1536, 259565), (1920, 207652), (2560, 155739), (3840, 103826), (7680, 51913)]