18138353840

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{9857801}}^1$

素因数の和:9857837

約数の個数: 40

約数和(自身を含む): 44005228128

約数和(自身を除く): 25866874288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 9857801, 19715602, 39431204, 49289005, 78862408, 98578010, 157724816, 197156020, 226729423, 394312040, 453458846, 788624080, 906917692, 1133647115, 1813835384, 2267294230, 3627670768, 4534588460, 9069176920, 18138353840]

約数ペア:

[(1, 18138353840), (2, 9069176920), (4, 4534588460), (5, 3627670768), (8, 2267294230), (10, 1813835384), (16, 1133647115), (20, 906917692), (23, 788624080), (40, 453458846), (46, 394312040), (80, 226729423), (92, 197156020), (115, 157724816), (184, 98578010), (230, 78862408), (368, 49289005), (460, 39431204), (920, 19715602), (1840, 9857801)]