388791896

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1\times {\mathrm{173}}^1$

素因数の和:408

約数の個数: 64

約数和(自身を含む): 771724800

約数和(自身を除く): 382932904

約数列:

[1, 2, 4, 8, 43, 47, 86, 94, 139, 172, 173, 188, 278, 344, 346, 376, 556, 692, 1112, 1384, 2021, 4042, 5977, 6533, 7439, 8084, 8131, 11954, 13066, 14878, 16168, 16262, 23908, 24047, 26132, 29756, 32524, 47816, 48094, 52264, 59512, 65048, 96188, 192376, 280919, 349633, 561838, 699266, 1034021, 1123676, 1130209, 1398532, 2068042, 2247352, 2260418, 2797064, 4136084, 4520836, 8272168, 9041672, 48598987, 97197974, 194395948, 388791896]

約数ペア:

[(1, 388791896), (2, 194395948), (4, 97197974), (8, 48598987), (43, 9041672), (47, 8272168), (86, 4520836), (94, 4136084), (139, 2797064), (172, 2260418), (173, 2247352), (188, 2068042), (278, 1398532), (344, 1130209), (346, 1123676), (376, 1034021), (556, 699266), (692, 561838), (1112, 349633), (1384, 280919), (2021, 192376), (4042, 96188), (5977, 65048), (6533, 59512), (7439, 52264), (8084, 48094), (8131, 47816), (11954, 32524), (13066, 29756), (14878, 26132), (16168, 24047), (16262, 23908)]