389976272

素因数分解:

$2^4\times 7^1\times {\mathrm{1861}}^1\times {\mathrm{1871}}^1$

素因数の和:3747

約数の個数: 40

約数和(自身を含む): 864444672

約数和(自身を除く): 474468400

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 1861, 1871, 3722, 3742, 7444, 7484, 13027, 13097, 14888, 14968, 26054, 26194, 29776, 29936, 52108, 52388, 104216, 104776, 208432, 209552, 3481931, 6963862, 13927724, 24373517, 27855448, 48747034, 55710896, 97494068, 194988136, 389976272]

約数ペア:

[(1, 389976272), (2, 194988136), (4, 97494068), (7, 55710896), (8, 48747034), (14, 27855448), (16, 24373517), (28, 13927724), (56, 6963862), (112, 3481931), (1861, 209552), (1871, 208432), (3722, 104776), (3742, 104216), (7444, 52388), (7484, 52108), (13027, 29936), (13097, 29776), (14888, 26194), (14968, 26054)]