81145472

素因数分解:

$2^7\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{641}}^1$

素因数の和:721

約数の個数: 64

約数和(自身を含む): 172877760

約数和(自身を除く): 91732288

約数列:

[1, 2, 4, 8, 16, 23, 32, 43, 46, 64, 86, 92, 128, 172, 184, 344, 368, 641, 688, 736, 989, 1282, 1376, 1472, 1978, 2564, 2752, 2944, 3956, 5128, 5504, 7912, 10256, 14743, 15824, 20512, 27563, 29486, 31648, 41024, 55126, 58972, 63296, 82048, 110252, 117944, 126592, 220504, 235888, 441008, 471776, 633949, 882016, 943552, 1267898, 1764032, 1887104, 2535796, 3528064, 5071592, 10143184, 20286368, 40572736, 81145472]

約数ペア:

[(1, 81145472), (2, 40572736), (4, 20286368), (8, 10143184), (16, 5071592), (23, 3528064), (32, 2535796), (43, 1887104), (46, 1764032), (64, 1267898), (86, 943552), (92, 882016), (128, 633949), (172, 471776), (184, 441008), (344, 235888), (368, 220504), (641, 126592), (688, 117944), (736, 110252), (989, 82048), (1282, 63296), (1376, 58972), (1472, 55126), (1978, 41024), (2564, 31648), (2752, 29486), (2944, 27563), (3956, 20512), (5128, 15824), (5504, 14743), (7912, 10256)]