28165144

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{257}}^1$

素因数の和:392

約数の個数: 64

約数和(自身を含む): 64396800

約数和(自身を除く): 36231656

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 103, 133, 152, 206, 257, 266, 412, 514, 532, 721, 824, 1028, 1064, 1442, 1799, 1957, 2056, 2884, 3598, 3914, 4883, 5768, 7196, 7828, 9766, 13699, 14392, 15656, 19532, 26471, 27398, 34181, 39064, 52942, 54796, 68362, 105884, 109592, 136724, 185297, 211768, 273448, 370594, 502949, 741188, 1005898, 1482376, 2011796, 3520643, 4023592, 7041286, 14082572, 28165144]

約数ペア:

[(1, 28165144), (2, 14082572), (4, 7041286), (7, 4023592), (8, 3520643), (14, 2011796), (19, 1482376), (28, 1005898), (38, 741188), (56, 502949), (76, 370594), (103, 273448), (133, 211768), (152, 185297), (206, 136724), (257, 109592), (266, 105884), (412, 68362), (514, 54796), (532, 52942), (721, 39064), (824, 34181), (1028, 27398), (1064, 26471), (1442, 19532), (1799, 15656), (1957, 14392), (2056, 13699), (2884, 9766), (3598, 7828), (3914, 7196), (4883, 5768)]