17872880

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1423}}^1$

素因数の和:1593

約数の個数: 40

約数和(自身を含む): 41848512

約数和(自身を除く): 23975632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 785, 1256, 1423, 1570, 2512, 2846, 3140, 5692, 6280, 7115, 11384, 12560, 14230, 22768, 28460, 56920, 113840, 223411, 446822, 893644, 1117055, 1787288, 2234110, 3574576, 4468220, 8936440, 17872880]

約数ペア:

[(1, 17872880), (2, 8936440), (4, 4468220), (5, 3574576), (8, 2234110), (10, 1787288), (16, 1117055), (20, 893644), (40, 446822), (80, 223411), (157, 113840), (314, 56920), (628, 28460), (785, 22768), (1256, 14230), (1423, 12560), (1570, 11384), (2512, 7115), (2846, 6280), (3140, 5692)]