20049712

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{653}}^1$

素因数の和:781

約数の個数: 40

約数和(自身を含む): 41358960

約数和(自身を除く): 21309248

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 101, 152, 202, 304, 404, 653, 808, 1306, 1616, 1919, 2612, 3838, 5224, 7676, 10448, 12407, 15352, 24814, 30704, 49628, 65953, 99256, 131906, 198512, 263812, 527624, 1055248, 1253107, 2506214, 5012428, 10024856, 20049712]

約数ペア:

[(1, 20049712), (2, 10024856), (4, 5012428), (8, 2506214), (16, 1253107), (19, 1055248), (38, 527624), (76, 263812), (101, 198512), (152, 131906), (202, 99256), (304, 65953), (404, 49628), (653, 30704), (808, 24814), (1306, 15352), (1616, 12407), (1919, 10448), (2612, 7676), (3838, 5224)]