255168340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{20479}}^1$

素因数の和:20584

約数の個数: 48

約数和(自身を含む): 619315200

約数和(自身を除く): 364146860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 178, 356, 445, 623, 890, 1246, 1780, 2492, 3115, 6230, 12460, 20479, 40958, 81916, 102395, 143353, 204790, 286706, 409580, 573412, 716765, 1433530, 1822631, 2867060, 3645262, 7290524, 9113155, 12758417, 18226310, 25516834, 36452620, 51033668, 63792085, 127584170, 255168340]

約数ペア:

[(1, 255168340), (2, 127584170), (4, 63792085), (5, 51033668), (7, 36452620), (10, 25516834), (14, 18226310), (20, 12758417), (28, 9113155), (35, 7290524), (70, 3645262), (89, 2867060), (140, 1822631), (178, 1433530), (356, 716765), (445, 573412), (623, 409580), (890, 286706), (1246, 204790), (1780, 143353), (2492, 102395), (3115, 81916), (6230, 40958), (12460, 20479)]