491785984

素因数分解:

$2^8\times {\mathrm{31}}^2\times {\mathrm{1999}}^1$

素因数の和:2077

約数の個数: 54

約数和(自身を含む): 1014846000

約数和(自身を除く): 523060016

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 961, 992, 1922, 1984, 1999, 3844, 3968, 3998, 7688, 7936, 7996, 15376, 15992, 30752, 31984, 61504, 61969, 63968, 123008, 123938, 127936, 246016, 247876, 255872, 495752, 511744, 991504, 1921039, 1983008, 3842078, 3966016, 7684156, 7932032, 15368312, 15864064, 30736624, 61473248, 122946496, 245892992, 491785984]

約数ペア:

[(1, 491785984), (2, 245892992), (4, 122946496), (8, 61473248), (16, 30736624), (31, 15864064), (32, 15368312), (62, 7932032), (64, 7684156), (124, 3966016), (128, 3842078), (248, 1983008), (256, 1921039), (496, 991504), (961, 511744), (992, 495752), (1922, 255872), (1984, 247876), (1999, 246016), (3844, 127936), (3968, 123938), (3998, 123008), (7688, 63968), (7936, 61969), (7996, 61504), (15376, 31984), (15992, 30752)]