30891140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{233}}^1\times {\mathrm{947}}^1$

素因数の和:1196

約数の個数: 48

約数和(自身を含む): 74535552

約数和(自身を除く): 43644412

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 233, 466, 932, 947, 1165, 1631, 1894, 2330, 3262, 3788, 4660, 4735, 6524, 6629, 8155, 9470, 13258, 16310, 18940, 26516, 32620, 33145, 66290, 132580, 220651, 441302, 882604, 1103255, 1544557, 2206510, 3089114, 4413020, 6178228, 7722785, 15445570, 30891140]

約数ペア:

[(1, 30891140), (2, 15445570), (4, 7722785), (5, 6178228), (7, 4413020), (10, 3089114), (14, 2206510), (20, 1544557), (28, 1103255), (35, 882604), (70, 441302), (140, 220651), (233, 132580), (466, 66290), (932, 33145), (947, 32620), (1165, 26516), (1631, 18940), (1894, 16310), (2330, 13258), (3262, 9470), (3788, 8155), (4660, 6629), (4735, 6524)]