28990208

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{281}}^1$

素因数の和:341

約数の個数: 72

約数和(自身を含む): 64557696

約数和(自身を除く): 35567488

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 64, 104, 124, 128, 208, 248, 256, 281, 403, 416, 496, 562, 806, 832, 992, 1124, 1612, 1664, 1984, 2248, 3224, 3328, 3653, 3968, 4496, 6448, 7306, 7936, 8711, 8992, 12896, 14612, 17422, 17984, 25792, 29224, 34844, 35968, 51584, 58448, 69688, 71936, 103168, 113243, 116896, 139376, 226486, 233792, 278752, 452972, 467584, 557504, 905944, 935168, 1115008, 1811888, 2230016, 3623776, 7247552, 14495104, 28990208]

約数ペア:

[(1, 28990208), (2, 14495104), (4, 7247552), (8, 3623776), (13, 2230016), (16, 1811888), (26, 1115008), (31, 935168), (32, 905944), (52, 557504), (62, 467584), (64, 452972), (104, 278752), (124, 233792), (128, 226486), (208, 139376), (248, 116896), (256, 113243), (281, 103168), (403, 71936), (416, 69688), (496, 58448), (562, 51584), (806, 35968), (832, 34844), (992, 29224), (1124, 25792), (1612, 17984), (1664, 17422), (1984, 14612), (2248, 12896), (3224, 8992), (3328, 8711), (3653, 7936), (3968, 7306), (4496, 6448)]