86830940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{251}}^1\times {\mathrm{353}}^1$

素因数の和:627

約数の個数: 72

約数和(自身を含む): 213563952

約数和(自身を除く): 126733012

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 251, 353, 490, 502, 706, 980, 1004, 1255, 1412, 1757, 1765, 2471, 2510, 3514, 3530, 4942, 5020, 7028, 7060, 8785, 9884, 12299, 12355, 17297, 17570, 24598, 24710, 34594, 35140, 49196, 49420, 61495, 69188, 86485, 88603, 122990, 172970, 177206, 245980, 345940, 354412, 443015, 620221, 886030, 1240442, 1772060, 2480884, 3101105, 4341547, 6202210, 8683094, 12404420, 17366188, 21707735, 43415470, 86830940]

約数ペア:

[(1, 86830940), (2, 43415470), (4, 21707735), (5, 17366188), (7, 12404420), (10, 8683094), (14, 6202210), (20, 4341547), (28, 3101105), (35, 2480884), (49, 1772060), (70, 1240442), (98, 886030), (140, 620221), (196, 443015), (245, 354412), (251, 345940), (353, 245980), (490, 177206), (502, 172970), (706, 122990), (980, 88603), (1004, 86485), (1255, 69188), (1412, 61495), (1757, 49420), (1765, 49196), (2471, 35140), (2510, 34594), (3514, 24710), (3530, 24598), (4942, 17570), (5020, 17297), (7028, 12355), (7060, 12299), (8785, 9884)]