2021918720

素因数分解:

$2^{11}\times 5^1\times {\mathrm{197453}}^1$

素因数の和:197480

約数の個数: 48

約数和(自身を含む): 4851444780

約数和(自身を除く): 2829526060

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, 5120, 10240, 197453, 394906, 789812, 987265, 1579624, 1974530, 3159248, 3949060, 6318496, 7898120, 12636992, 15796240, 25273984, 31592480, 50547968, 63184960, 101095936, 126369920, 202191872, 252739840, 404383744, 505479680, 1010959360, 2021918720]

約数ペア:

[(1, 2021918720), (2, 1010959360), (4, 505479680), (5, 404383744), (8, 252739840), (10, 202191872), (16, 126369920), (20, 101095936), (32, 63184960), (40, 50547968), (64, 31592480), (80, 25273984), (128, 15796240), (160, 12636992), (256, 7898120), (320, 6318496), (512, 3949060), (640, 3159248), (1024, 1974530), (1280, 1579624), (2048, 987265), (2560, 789812), (5120, 394906), (10240, 197453)]