66987808

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{547}}^1$

素因数の和:689

約数の個数: 48

約数和(自身を含む): 136715040

約数和(自身を除く): 69727232

約数列:

[1, 2, 4, 8, 16, 32, 43, 86, 89, 172, 178, 344, 356, 547, 688, 712, 1094, 1376, 1424, 2188, 2848, 3827, 4376, 7654, 8752, 15308, 17504, 23521, 30616, 47042, 48683, 61232, 94084, 97366, 122464, 188168, 194732, 376336, 389464, 752672, 778928, 1557856, 2093369, 4186738, 8373476, 16746952, 33493904, 66987808]

約数ペア:

[(1, 66987808), (2, 33493904), (4, 16746952), (8, 8373476), (16, 4186738), (32, 2093369), (43, 1557856), (86, 778928), (89, 752672), (172, 389464), (178, 376336), (344, 194732), (356, 188168), (547, 122464), (688, 97366), (712, 94084), (1094, 61232), (1376, 48683), (1424, 47042), (2188, 30616), (2848, 23521), (3827, 17504), (4376, 15308), (7654, 8752)]