28989016

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{317}}^1$

素因数の和:424

約数の個数: 64

約数和(自身を含む): 65940480

約数和(自身を除く): 36951464

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 71, 92, 142, 161, 184, 284, 317, 322, 497, 568, 634, 644, 994, 1268, 1288, 1633, 1988, 2219, 2536, 3266, 3976, 4438, 6532, 7291, 8876, 11431, 13064, 14582, 17752, 22507, 22862, 29164, 45014, 45724, 51037, 58328, 90028, 91448, 102074, 157549, 180056, 204148, 315098, 408296, 517661, 630196, 1035322, 1260392, 2070644, 3623627, 4141288, 7247254, 14494508, 28989016]

約数ペア:

[(1, 28989016), (2, 14494508), (4, 7247254), (7, 4141288), (8, 3623627), (14, 2070644), (23, 1260392), (28, 1035322), (46, 630196), (56, 517661), (71, 408296), (92, 315098), (142, 204148), (161, 180056), (184, 157549), (284, 102074), (317, 91448), (322, 90028), (497, 58328), (568, 51037), (634, 45724), (644, 45014), (994, 29164), (1268, 22862), (1288, 22507), (1633, 17752), (1988, 14582), (2219, 13064), (2536, 11431), (3266, 8876), (3976, 7291), (4438, 6532)]