1258704640

素因数分解:

$2^8\times 5^1\times {\mathrm{983363}}^1$

素因数の和:983384

約数の個数: 36

約数和(自身を含む): 3014994024

約数和(自身を除く): 1756289384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 983363, 1966726, 3933452, 4916815, 7866904, 9833630, 15733808, 19667260, 31467616, 39334520, 62935232, 78669040, 125870464, 157338080, 251740928, 314676160, 629352320, 1258704640]

約数ペア:

[(1, 1258704640), (2, 629352320), (4, 314676160), (5, 251740928), (8, 157338080), (10, 125870464), (16, 78669040), (20, 62935232), (32, 39334520), (40, 31467616), (64, 19667260), (80, 15733808), (128, 9833630), (160, 7866904), (256, 4916815), (320, 3933452), (640, 1966726), (1280, 983363)]