261525424

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{27751}}^1$

素因数の和:27809

約数の個数: 40

約数和(自身を含む): 550599680

約数和(自身を除く): 289074256

約数列:

[1, 2, 4, 8, 16, 19, 31, 38, 62, 76, 124, 152, 248, 304, 496, 589, 1178, 2356, 4712, 9424, 27751, 55502, 111004, 222008, 444016, 527269, 860281, 1054538, 1720562, 2109076, 3441124, 4218152, 6882248, 8436304, 13764496, 16345339, 32690678, 65381356, 130762712, 261525424]

約数ペア:

[(1, 261525424), (2, 130762712), (4, 65381356), (8, 32690678), (16, 16345339), (19, 13764496), (31, 8436304), (38, 6882248), (62, 4218152), (76, 3441124), (124, 2109076), (152, 1720562), (248, 1054538), (304, 860281), (496, 527269), (589, 444016), (1178, 222008), (2356, 111004), (4712, 55502), (9424, 27751)]