1323421520

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{246907}}^1$

素因数の和:246987

約数の個数: 40

約数和(自身を含む): 3122892384

約数和(自身を除く): 1799470864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 5360, 246907, 493814, 987628, 1234535, 1975256, 2469070, 3950512, 4938140, 9876280, 16542769, 19752560, 33085538, 66171076, 82713845, 132342152, 165427690, 264684304, 330855380, 661710760, 1323421520]

約数ペア:

[(1, 1323421520), (2, 661710760), (4, 330855380), (5, 264684304), (8, 165427690), (10, 132342152), (16, 82713845), (20, 66171076), (40, 33085538), (67, 19752560), (80, 16542769), (134, 9876280), (268, 4938140), (335, 3950512), (536, 2469070), (670, 1975256), (1072, 1234535), (1340, 987628), (2680, 493814), (5360, 246907)]