28472665

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{167}}^1$

素因数の和:289

約数の個数: 32

約数和(自身を含む): 38497536

約数和(自身を除く): 10024871

約数列:

[1, 5, 13, 43, 61, 65, 167, 215, 305, 559, 793, 835, 2171, 2623, 2795, 3965, 7181, 10187, 10855, 13115, 34099, 35905, 50935, 93353, 132431, 170495, 438041, 466765, 662155, 2190205, 5694533, 28472665]

約数ペア:

[(1, 28472665), (5, 5694533), (13, 2190205), (43, 662155), (61, 466765), (65, 438041), (167, 170495), (215, 132431), (305, 93353), (559, 50935), (793, 35905), (835, 34099), (2171, 13115), (2623, 10855), (2795, 10187), (3965, 7181)]