647037215

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{571}}^1\times {\mathrm{1873}}^1$

素因数の和:2471

約数の個数: 24

約数和(自身を含む): 855398544

約数和(自身を除く): 208361329

約数列:

[1, 5, 11, 55, 121, 571, 605, 1873, 2855, 6281, 9365, 20603, 31405, 69091, 103015, 226633, 345455, 1069483, 1133165, 5347415, 11764313, 58821565, 129407443, 647037215]

約数ペア:

[(1, 647037215), (5, 129407443), (11, 58821565), (55, 11764313), (121, 5347415), (571, 1133165), (605, 1069483), (1873, 345455), (2855, 226633), (6281, 103015), (9365, 69091), (20603, 31405)]