20490968

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{1193}}^1$

素因数の和:1331

約数の個数: 32

約数和(自身を含む): 40834800

約数和(自身を除く): 20343832

約数列:

[1, 2, 4, 8, 19, 38, 76, 113, 152, 226, 452, 904, 1193, 2147, 2386, 4294, 4772, 8588, 9544, 17176, 22667, 45334, 90668, 134809, 181336, 269618, 539236, 1078472, 2561371, 5122742, 10245484, 20490968]

約数ペア:

[(1, 20490968), (2, 10245484), (4, 5122742), (8, 2561371), (19, 1078472), (38, 539236), (76, 269618), (113, 181336), (152, 134809), (226, 90668), (452, 45334), (904, 22667), (1193, 17176), (2147, 9544), (2386, 8588), (4294, 4772)]