320639488

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{719}}^1$

素因数の和:817

約数の個数: 80

約数和(自身を含む): 701205120

約数和(自身を除く): 380565632

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 67, 104, 128, 134, 208, 256, 268, 416, 512, 536, 719, 832, 871, 1072, 1438, 1664, 1742, 2144, 2876, 3328, 3484, 4288, 5752, 6656, 6968, 8576, 9347, 11504, 13936, 17152, 18694, 23008, 27872, 34304, 37388, 46016, 48173, 55744, 74776, 92032, 96346, 111488, 149552, 184064, 192692, 222976, 299104, 368128, 385384, 445952, 598208, 626249, 770768, 1196416, 1252498, 1541536, 2392832, 2504996, 3083072, 4785664, 5009992, 6166144, 10019984, 12332288, 20039968, 24664576, 40079936, 80159872, 160319744, 320639488]

約数ペア:

[(1, 320639488), (2, 160319744), (4, 80159872), (8, 40079936), (13, 24664576), (16, 20039968), (26, 12332288), (32, 10019984), (52, 6166144), (64, 5009992), (67, 4785664), (104, 3083072), (128, 2504996), (134, 2392832), (208, 1541536), (256, 1252498), (268, 1196416), (416, 770768), (512, 626249), (536, 598208), (719, 445952), (832, 385384), (871, 368128), (1072, 299104), (1438, 222976), (1664, 192692), (1742, 184064), (2144, 149552), (2876, 111488), (3328, 96346), (3484, 92032), (4288, 74776), (5752, 55744), (6656, 48173), (6968, 46016), (8576, 37388), (9347, 34304), (11504, 27872), (13936, 23008), (17152, 18694)]