20326048

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{331}}^1$

素因数の和:461

約数の個数: 48

約数和(自身を含む): 42668640

約数和(自身を除く): 22342592

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 101, 152, 202, 304, 331, 404, 608, 662, 808, 1324, 1616, 1919, 2648, 3232, 3838, 5296, 6289, 7676, 10592, 12578, 15352, 25156, 30704, 33431, 50312, 61408, 66862, 100624, 133724, 201248, 267448, 534896, 635189, 1069792, 1270378, 2540756, 5081512, 10163024, 20326048]

約数ペア:

[(1, 20326048), (2, 10163024), (4, 5081512), (8, 2540756), (16, 1270378), (19, 1069792), (32, 635189), (38, 534896), (76, 267448), (101, 201248), (152, 133724), (202, 100624), (304, 66862), (331, 61408), (404, 50312), (608, 33431), (662, 30704), (808, 25156), (1324, 15352), (1616, 12578), (1919, 10592), (2648, 7676), (3232, 6289), (3838, 5296)]