20089615

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{659}}^1$

素因数の和:751

約数の個数: 32

約数和(自身を含む): 30159360

約数和(自身を除く): 10069745

約数列:

[1, 5, 7, 13, 35, 65, 67, 91, 335, 455, 469, 659, 871, 2345, 3295, 4355, 4613, 6097, 8567, 23065, 30485, 42835, 44153, 59969, 220765, 299845, 309071, 573989, 1545355, 2869945, 4017923, 20089615]

約数ペア:

[(1, 20089615), (5, 4017923), (7, 2869945), (13, 1545355), (35, 573989), (65, 309071), (67, 299845), (91, 220765), (335, 59969), (455, 44153), (469, 42835), (659, 30485), (871, 23065), (2345, 8567), (3295, 6097), (4355, 4613)]