404248960

素因数分解:

$2^7\times 5^1\times {\mathrm{487}}^1\times {\mathrm{1297}}^1$

素因数の和:1803

約数の個数: 64

約数和(自身を含む): 969138720

約数和(自身を除く): 564889760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 487, 640, 974, 1297, 1948, 2435, 2594, 3896, 4870, 5188, 6485, 7792, 9740, 10376, 12970, 15584, 19480, 20752, 25940, 31168, 38960, 41504, 51880, 62336, 77920, 83008, 103760, 155840, 166016, 207520, 311680, 415040, 631639, 830080, 1263278, 2526556, 3158195, 5053112, 6316390, 10106224, 12632780, 20212448, 25265560, 40424896, 50531120, 80849792, 101062240, 202124480, 404248960]

約数ペア:

[(1, 404248960), (2, 202124480), (4, 101062240), (5, 80849792), (8, 50531120), (10, 40424896), (16, 25265560), (20, 20212448), (32, 12632780), (40, 10106224), (64, 6316390), (80, 5053112), (128, 3158195), (160, 2526556), (320, 1263278), (487, 830080), (640, 631639), (974, 415040), (1297, 311680), (1948, 207520), (2435, 166016), (2594, 155840), (3896, 103760), (4870, 83008), (5188, 77920), (6485, 62336), (7792, 51880), (9740, 41504), (10376, 38960), (12970, 31168), (15584, 25940), (19480, 20752)]