428938240

素因数分解:

$2^{10}\times 5^1\times {\mathrm{83777}}^1$

素因数の和:83802

約数の個数: 44

約数和(自身を含む): 1028961396

約数和(自身を除く): 600023156

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 83777, 167554, 335108, 418885, 670216, 837770, 1340432, 1675540, 2680864, 3351080, 5361728, 6702160, 10723456, 13404320, 21446912, 26808640, 42893824, 53617280, 85787648, 107234560, 214469120, 428938240]

約数ペア:

[(1, 428938240), (2, 214469120), (4, 107234560), (5, 85787648), (8, 53617280), (10, 42893824), (16, 26808640), (20, 21446912), (32, 13404320), (40, 10723456), (64, 6702160), (80, 5361728), (128, 3351080), (160, 2680864), (256, 1675540), (320, 1340432), (512, 837770), (640, 670216), (1024, 418885), (1280, 335108), (2560, 167554), (5120, 83777)]