398663680

素因数分解:

$2^{13}\times 5^1\times {\mathrm{9733}}^1$

素因数の和:9764

約数の個数: 56

約数和(自身を含む): 956832732

約数和(自身を除く): 558169052

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2048, 2560, 4096, 5120, 8192, 9733, 10240, 19466, 20480, 38932, 40960, 48665, 77864, 97330, 155728, 194660, 311456, 389320, 622912, 778640, 1245824, 1557280, 2491648, 3114560, 4983296, 6229120, 9966592, 12458240, 19933184, 24916480, 39866368, 49832960, 79732736, 99665920, 199331840, 398663680]

約数ペア:

[(1, 398663680), (2, 199331840), (4, 99665920), (5, 79732736), (8, 49832960), (10, 39866368), (16, 24916480), (20, 19933184), (32, 12458240), (40, 9966592), (64, 6229120), (80, 4983296), (128, 3114560), (160, 2491648), (256, 1557280), (320, 1245824), (512, 778640), (640, 622912), (1024, 389320), (1280, 311456), (2048, 194660), (2560, 155728), (4096, 97330), (5120, 77864), (8192, 48665), (9733, 40960), (10240, 38932), (19466, 20480)]