399321664

素因数分解:

$2^6\times 7^1\times {\mathrm{31}}^1\times {\mathrm{28753}}^1$

素因数の和:28803

約数の個数: 56

約数和(自身を含む): 934850048

約数和(自身を除く): 535528384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 217, 224, 248, 434, 448, 496, 868, 992, 1736, 1984, 3472, 6944, 13888, 28753, 57506, 115012, 201271, 230024, 402542, 460048, 805084, 891343, 920096, 1610168, 1782686, 1840192, 3220336, 3565372, 6239401, 6440672, 7130744, 12478802, 12881344, 14261488, 24957604, 28522976, 49915208, 57045952, 99830416, 199660832, 399321664]

約数ペア:

[(1, 399321664), (2, 199660832), (4, 99830416), (7, 57045952), (8, 49915208), (14, 28522976), (16, 24957604), (28, 14261488), (31, 12881344), (32, 12478802), (56, 7130744), (62, 6440672), (64, 6239401), (112, 3565372), (124, 3220336), (217, 1840192), (224, 1782686), (248, 1610168), (434, 920096), (448, 891343), (496, 805084), (868, 460048), (992, 402542), (1736, 230024), (1984, 201271), (3472, 115012), (6944, 57506), (13888, 28753)]