266256640

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{16001}}^1$

素因数の和:16035

約数の個数: 72

約数和(自身を含む): 686869848

約数和(自身を除く): 420613208

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1280, 1664, 2080, 3328, 4160, 8320, 16001, 16640, 32002, 64004, 80005, 128008, 160010, 208013, 256016, 320020, 416026, 512032, 640040, 832052, 1024064, 1040065, 1280080, 1664104, 2048128, 2080130, 2560160, 3328208, 4096256, 4160260, 5120320, 6656416, 8320520, 10240640, 13312832, 16641040, 20481280, 26625664, 33282080, 53251328, 66564160, 133128320, 266256640]

約数ペア:

[(1, 266256640), (2, 133128320), (4, 66564160), (5, 53251328), (8, 33282080), (10, 26625664), (13, 20481280), (16, 16641040), (20, 13312832), (26, 10240640), (32, 8320520), (40, 6656416), (52, 5120320), (64, 4160260), (65, 4096256), (80, 3328208), (104, 2560160), (128, 2080130), (130, 2048128), (160, 1664104), (208, 1280080), (256, 1040065), (260, 1024064), (320, 832052), (416, 640040), (520, 512032), (640, 416026), (832, 320020), (1040, 256016), (1280, 208013), (1664, 160010), (2080, 128008), (3328, 80005), (4160, 64004), (8320, 32002), (16001, 16640)]