28791308

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1$

素因数の和:247

約数の個数: 96

約数和(自身を含む): 68490240

約数和(自身を除く): 39698932

約数列:

[1, 2, 4, 7, 13, 14, 19, 23, 26, 28, 38, 46, 52, 76, 91, 92, 133, 161, 181, 182, 247, 266, 299, 322, 362, 364, 437, 494, 532, 598, 644, 724, 874, 988, 1196, 1267, 1729, 1748, 2093, 2353, 2534, 3059, 3439, 3458, 4163, 4186, 4706, 5068, 5681, 6118, 6878, 6916, 8326, 8372, 9412, 11362, 12236, 13756, 16471, 16652, 22724, 24073, 29141, 32942, 39767, 44707, 48146, 54119, 58282, 65884, 79097, 79534, 89414, 96292, 108238, 116564, 158194, 159068, 178828, 216476, 312949, 316388, 378833, 553679, 625898, 757666, 1028261, 1107358, 1251796, 1515332, 2056522, 2214716, 4113044, 7197827, 14395654, 28791308]

約数ペア:

[(1, 28791308), (2, 14395654), (4, 7197827), (7, 4113044), (13, 2214716), (14, 2056522), (19, 1515332), (23, 1251796), (26, 1107358), (28, 1028261), (38, 757666), (46, 625898), (52, 553679), (76, 378833), (91, 316388), (92, 312949), (133, 216476), (161, 178828), (181, 159068), (182, 158194), (247, 116564), (266, 108238), (299, 96292), (322, 89414), (362, 79534), (364, 79097), (437, 65884), (494, 58282), (532, 54119), (598, 48146), (644, 44707), (724, 39767), (874, 32942), (988, 29141), (1196, 24073), (1267, 22724), (1729, 16652), (1748, 16471), (2093, 13756), (2353, 12236), (2534, 11362), (3059, 9412), (3439, 8372), (3458, 8326), (4163, 6916), (4186, 6878), (4706, 6118), (5068, 5681)]