28401568

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1019}}^1$

素因数の和:1109

約数の個数: 48

約数和(自身を含む): 61175520

約数和(自身を除く): 32773952

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 67, 104, 134, 208, 268, 416, 536, 871, 1019, 1072, 1742, 2038, 2144, 3484, 4076, 6968, 8152, 13247, 13936, 16304, 26494, 27872, 32608, 52988, 68273, 105976, 136546, 211952, 273092, 423904, 546184, 887549, 1092368, 1775098, 2184736, 3550196, 7100392, 14200784, 28401568]

約数ペア:

[(1, 28401568), (2, 14200784), (4, 7100392), (8, 3550196), (13, 2184736), (16, 1775098), (26, 1092368), (32, 887549), (52, 546184), (67, 423904), (104, 273092), (134, 211952), (208, 136546), (268, 105976), (416, 68273), (536, 52988), (871, 32608), (1019, 27872), (1072, 26494), (1742, 16304), (2038, 13936), (2144, 13247), (3484, 8152), (4076, 6968)]