28338320

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{311}}^1$

素因数の和:408

約数の個数: 80

約数和(自身を含む): 71031168

約数和(自身を除く): 42692848

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 67, 68, 80, 85, 134, 136, 170, 268, 272, 311, 335, 340, 536, 622, 670, 680, 1072, 1139, 1244, 1340, 1360, 1555, 2278, 2488, 2680, 3110, 4556, 4976, 5287, 5360, 5695, 6220, 9112, 10574, 11390, 12440, 18224, 20837, 21148, 22780, 24880, 26435, 41674, 42296, 45560, 52870, 83348, 84592, 91120, 104185, 105740, 166696, 208370, 211480, 333392, 354229, 416740, 422960, 708458, 833480, 1416916, 1666960, 1771145, 2833832, 3542290, 5667664, 7084580, 14169160, 28338320]

約数ペア:

[(1, 28338320), (2, 14169160), (4, 7084580), (5, 5667664), (8, 3542290), (10, 2833832), (16, 1771145), (17, 1666960), (20, 1416916), (34, 833480), (40, 708458), (67, 422960), (68, 416740), (80, 354229), (85, 333392), (134, 211480), (136, 208370), (170, 166696), (268, 105740), (272, 104185), (311, 91120), (335, 84592), (340, 83348), (536, 52870), (622, 45560), (670, 42296), (680, 41674), (1072, 26435), (1139, 24880), (1244, 22780), (1340, 21148), (1360, 20837), (1555, 18224), (2278, 12440), (2488, 11390), (2680, 10574), (3110, 9112), (4556, 6220), (4976, 5695), (5287, 5360)]