20088285

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{151}}^1\times {\mathrm{181}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 37844352

約数和(自身を除く): 17756067

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 151, 181, 245, 453, 543, 735, 755, 905, 1057, 1267, 2265, 2715, 3171, 3801, 5285, 6335, 7399, 8869, 15855, 19005, 22197, 26607, 27331, 36995, 44345, 81993, 110985, 133035, 136655, 191317, 409965, 573951, 956585, 1339219, 2869755, 4017657, 6696095, 20088285]

約数ペア:

[(1, 20088285), (3, 6696095), (5, 4017657), (7, 2869755), (15, 1339219), (21, 956585), (35, 573951), (49, 409965), (105, 191317), (147, 136655), (151, 133035), (181, 110985), (245, 81993), (453, 44345), (543, 36995), (735, 27331), (755, 26607), (905, 22197), (1057, 19005), (1267, 15855), (2265, 8869), (2715, 7399), (3171, 6335), (3801, 5285)]