20706295

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:223

約数の個数: 32

約数和(自身を含む): 27648000

約数和(自身を除く): 6941705

約数列:

[1, 5, 19, 31, 79, 89, 95, 155, 395, 445, 589, 1501, 1691, 2449, 2759, 2945, 7031, 7505, 8455, 12245, 13795, 35155, 46531, 52421, 133589, 217961, 232655, 262105, 667945, 1089805, 4141259, 20706295]

約数ペア:

[(1, 20706295), (5, 4141259), (19, 1089805), (31, 667945), (79, 262105), (89, 232655), (95, 217961), (155, 133589), (395, 52421), (445, 46531), (589, 35155), (1501, 13795), (1691, 12245), (2449, 8455), (2759, 7505), (2945, 7031)]