640039968

素因数分解:

$2^5\times 3^4\times {\mathrm{246929}}^1$

素因数の和:246951

約数の個数: 60

約数和(自身を含む): 1882347390

約数和(自身を除く): 1242307422

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 72, 81, 96, 108, 144, 162, 216, 288, 324, 432, 648, 864, 1296, 2592, 246929, 493858, 740787, 987716, 1481574, 1975432, 2222361, 2963148, 3950864, 4444722, 5926296, 6667083, 7901728, 8889444, 11852592, 13334166, 17778888, 20001249, 23705184, 26668332, 35557776, 40002498, 53336664, 71115552, 80004996, 106673328, 160009992, 213346656, 320019984, 640039968]

約数ペア:

[(1, 640039968), (2, 320019984), (3, 213346656), (4, 160009992), (6, 106673328), (8, 80004996), (9, 71115552), (12, 53336664), (16, 40002498), (18, 35557776), (24, 26668332), (27, 23705184), (32, 20001249), (36, 17778888), (48, 13334166), (54, 11852592), (72, 8889444), (81, 7901728), (96, 6667083), (108, 5926296), (144, 4444722), (162, 3950864), (216, 2963148), (288, 2222361), (324, 1975432), (432, 1481574), (648, 987716), (864, 740787), (1296, 493858), (2592, 246929)]