28531520

素因数分解:

$2^6\times 5^1\times {\mathrm{163}}^1\times {\mathrm{547}}^1$

素因数の和:727

約数の個数: 56

約数和(自身を含む): 68482464

約数和(自身を除く): 39950944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 163, 320, 326, 547, 652, 815, 1094, 1304, 1630, 2188, 2608, 2735, 3260, 4376, 5216, 5470, 6520, 8752, 10432, 10940, 13040, 17504, 21880, 26080, 35008, 43760, 52160, 87520, 89161, 175040, 178322, 356644, 445805, 713288, 891610, 1426576, 1783220, 2853152, 3566440, 5706304, 7132880, 14265760, 28531520]

約数ペア:

[(1, 28531520), (2, 14265760), (4, 7132880), (5, 5706304), (8, 3566440), (10, 2853152), (16, 1783220), (20, 1426576), (32, 891610), (40, 713288), (64, 445805), (80, 356644), (160, 178322), (163, 175040), (320, 89161), (326, 87520), (547, 52160), (652, 43760), (815, 35008), (1094, 26080), (1304, 21880), (1630, 17504), (2188, 13040), (2608, 10940), (2735, 10432), (3260, 8752), (4376, 6520), (5216, 5470)]