20355685

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{257}}^1$

素因数の和:373

約数の個数: 32

約数和(自身を含む): 29325312

約数和(自身を除く): 8969627

約数列:

[1, 5, 7, 31, 35, 73, 155, 217, 257, 365, 511, 1085, 1285, 1799, 2263, 2555, 7967, 8995, 11315, 15841, 18761, 39835, 55769, 79205, 93805, 131327, 278845, 581591, 656635, 2907955, 4071137, 20355685]

約数ペア:

[(1, 20355685), (5, 4071137), (7, 2907955), (31, 656635), (35, 581591), (73, 278845), (155, 131327), (217, 93805), (257, 79205), (365, 55769), (511, 39835), (1085, 18761), (1285, 15841), (1799, 11315), (2263, 8995), (2555, 7967)]