18643840

素因数分解:

$2^7\times 5^1\times {\mathrm{29131}}^1$

素因数の和:29150

約数の個数: 32

約数和(自身を含む): 44571960

約数和(自身を除く): 25928120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 29131, 58262, 116524, 145655, 233048, 291310, 466096, 582620, 932192, 1165240, 1864384, 2330480, 3728768, 4660960, 9321920, 18643840]

約数ペア:

[(1, 18643840), (2, 9321920), (4, 4660960), (5, 3728768), (8, 2330480), (10, 1864384), (16, 1165240), (20, 932192), (32, 582620), (40, 466096), (64, 291310), (80, 233048), (128, 145655), (160, 116524), (320, 58262), (640, 29131)]