199603840

素因数分解:

$2^7\times 5^1\times {\mathrm{311881}}^1$

素因数の和:311900

約数の個数: 32

約数和(自身を含む): 477179460

約数和(自身を除く): 277575620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 311881, 623762, 1247524, 1559405, 2495048, 3118810, 4990096, 6237620, 9980192, 12475240, 19960384, 24950480, 39920768, 49900960, 99801920, 199603840]

約数ペア:

[(1, 199603840), (2, 99801920), (4, 49900960), (5, 39920768), (8, 24950480), (10, 19960384), (16, 12475240), (20, 9980192), (32, 6237620), (40, 4990096), (64, 3118810), (80, 2495048), (128, 1559405), (160, 1247524), (320, 623762), (640, 311881)]