279966208

素因数分解:

$2^9\times {\mathrm{31}}^2\times {\mathrm{569}}^1$

素因数の和:649

約数の個数: 60

約数和(自身を含む): 579028230

約数和(自身を除く): 299062022

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 512, 569, 961, 992, 1138, 1922, 1984, 2276, 3844, 3968, 4552, 7688, 7936, 9104, 15376, 15872, 17639, 18208, 30752, 35278, 36416, 61504, 70556, 72832, 123008, 141112, 145664, 246016, 282224, 291328, 492032, 546809, 564448, 1093618, 1128896, 2187236, 2257792, 4374472, 4515584, 8748944, 9031168, 17497888, 34995776, 69991552, 139983104, 279966208]

約数ペア:

[(1, 279966208), (2, 139983104), (4, 69991552), (8, 34995776), (16, 17497888), (31, 9031168), (32, 8748944), (62, 4515584), (64, 4374472), (124, 2257792), (128, 2187236), (248, 1128896), (256, 1093618), (496, 564448), (512, 546809), (569, 492032), (961, 291328), (992, 282224), (1138, 246016), (1922, 145664), (1984, 141112), (2276, 123008), (3844, 72832), (3968, 70556), (4552, 61504), (7688, 36416), (7936, 35278), (9104, 30752), (15376, 18208), (15872, 17639)]