20521930

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{127}}^1$

素因数の和:271

約数の個数: 64

約数和(自身を含む): 44126208

約数和(自身を除く): 23604278

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 113, 127, 130, 143, 226, 254, 286, 565, 635, 715, 1130, 1243, 1270, 1397, 1430, 1469, 1651, 2486, 2794, 2938, 3302, 6215, 6985, 7345, 8255, 12430, 13970, 14351, 14690, 16159, 16510, 18161, 28702, 32318, 36322, 71755, 80795, 90805, 143510, 157861, 161590, 181610, 186563, 315722, 373126, 789305, 932815, 1578610, 1865630, 2052193, 4104386, 10260965, 20521930]

約数ペア:

[(1, 20521930), (2, 10260965), (5, 4104386), (10, 2052193), (11, 1865630), (13, 1578610), (22, 932815), (26, 789305), (55, 373126), (65, 315722), (110, 186563), (113, 181610), (127, 161590), (130, 157861), (143, 143510), (226, 90805), (254, 80795), (286, 71755), (565, 36322), (635, 32318), (715, 28702), (1130, 18161), (1243, 16510), (1270, 16159), (1397, 14690), (1430, 14351), (1469, 13970), (1651, 12430), (2486, 8255), (2794, 7345), (2938, 6985), (3302, 6215)]