161020240

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{87511}}^1$

素因数の和:87547

約数の個数: 40

約数和(自身を含む): 390653568

約数和(自身を除く): 229633328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 87511, 175022, 350044, 437555, 700088, 875110, 1400176, 1750220, 2012753, 3500440, 4025506, 7000880, 8051012, 10063765, 16102024, 20127530, 32204048, 40255060, 80510120, 161020240]

約数ペア:

[(1, 161020240), (2, 80510120), (4, 40255060), (5, 32204048), (8, 20127530), (10, 16102024), (16, 10063765), (20, 8051012), (23, 7000880), (40, 4025506), (46, 3500440), (80, 2012753), (92, 1750220), (115, 1400176), (184, 875110), (230, 700088), (368, 437555), (460, 350044), (920, 175022), (1840, 87511)]