31021400

素因数分解:

$2^3\times 5^2\times {\mathrm{109}}^1\times {\mathrm{1423}}^1$

素因数の和:1548

約数の個数: 48

約数和(自身を含む): 72837600

約数和(自身を除く): 41816200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 109, 200, 218, 436, 545, 872, 1090, 1423, 2180, 2725, 2846, 4360, 5450, 5692, 7115, 10900, 11384, 14230, 21800, 28460, 35575, 56920, 71150, 142300, 155107, 284600, 310214, 620428, 775535, 1240856, 1551070, 3102140, 3877675, 6204280, 7755350, 15510700, 31021400]

約数ペア:

[(1, 31021400), (2, 15510700), (4, 7755350), (5, 6204280), (8, 3877675), (10, 3102140), (20, 1551070), (25, 1240856), (40, 775535), (50, 620428), (100, 310214), (109, 284600), (200, 155107), (218, 142300), (436, 71150), (545, 56920), (872, 35575), (1090, 28460), (1423, 21800), (2180, 14230), (2725, 11384), (2846, 10900), (4360, 7115), (5450, 5692)]