20117755

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{373}}^1$

素因数の和:475

約数の個数: 32

約数和(自身を含む): 29297664

約数和(自身を除く): 9179909

約数列:

[1, 5, 7, 23, 35, 67, 115, 161, 335, 373, 469, 805, 1541, 1865, 2345, 2611, 7705, 8579, 10787, 13055, 24991, 42895, 53935, 60053, 124955, 174937, 300265, 574793, 874685, 2873965, 4023551, 20117755]

約数ペア:

[(1, 20117755), (5, 4023551), (7, 2873965), (23, 874685), (35, 574793), (67, 300265), (115, 174937), (161, 124955), (335, 60053), (373, 53935), (469, 42895), (805, 24991), (1541, 13055), (1865, 10787), (2345, 8579), (2611, 7705)]