19962005

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{277}}^1$

素因数の和:389

約数の個数: 32

約数和(自身を含む): 28823040

約数和(自身を除く): 8861035

約数列:

[1, 5, 7, 29, 35, 71, 145, 203, 277, 355, 497, 1015, 1385, 1939, 2059, 2485, 8033, 9695, 10295, 14413, 19667, 40165, 56231, 72065, 98335, 137669, 281155, 570343, 688345, 2851715, 3992401, 19962005]

約数ペア:

[(1, 19962005), (5, 3992401), (7, 2851715), (29, 688345), (35, 570343), (71, 281155), (145, 137669), (203, 98335), (277, 72065), (355, 56231), (497, 40165), (1015, 19667), (1385, 14413), (1939, 10295), (2059, 9695), (2485, 8033)]