28171312

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1$

素因数の和:326

約数の個数: 80

約数和(自身を含む): 64495872

約数和(自身を除く): 36324560

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 31, 34, 52, 62, 68, 104, 124, 136, 208, 221, 248, 257, 272, 403, 442, 496, 514, 527, 806, 884, 1028, 1054, 1612, 1768, 2056, 2108, 3224, 3341, 3536, 4112, 4216, 4369, 6448, 6682, 6851, 7967, 8432, 8738, 13364, 13702, 15934, 17476, 26728, 27404, 31868, 34952, 53456, 54808, 56797, 63736, 69904, 103571, 109616, 113594, 127472, 135439, 207142, 227188, 270878, 414284, 454376, 541756, 828568, 908752, 1083512, 1657136, 1760707, 2167024, 3521414, 7042828, 14085656, 28171312]

約数ペア:

[(1, 28171312), (2, 14085656), (4, 7042828), (8, 3521414), (13, 2167024), (16, 1760707), (17, 1657136), (26, 1083512), (31, 908752), (34, 828568), (52, 541756), (62, 454376), (68, 414284), (104, 270878), (124, 227188), (136, 207142), (208, 135439), (221, 127472), (248, 113594), (257, 109616), (272, 103571), (403, 69904), (442, 63736), (496, 56797), (514, 54808), (527, 53456), (806, 34952), (884, 31868), (1028, 27404), (1054, 26728), (1612, 17476), (1768, 15934), (2056, 13702), (2108, 13364), (3224, 8738), (3341, 8432), (3536, 7967), (4112, 6851), (4216, 6682), (4369, 6448)]