20452965

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1979}}^1$

素因数の和:2053

約数の個数: 32

約数和(自身を含む): 35925120

約数和(自身を除く): 15472155

約数列:

[1, 3, 5, 13, 15, 39, 53, 65, 159, 195, 265, 689, 795, 1979, 2067, 3445, 5937, 9895, 10335, 25727, 29685, 77181, 104887, 128635, 314661, 385905, 524435, 1363531, 1573305, 4090593, 6817655, 20452965]

約数ペア:

[(1, 20452965), (3, 6817655), (5, 4090593), (13, 1573305), (15, 1363531), (39, 524435), (53, 385905), (65, 314661), (159, 128635), (195, 104887), (265, 77181), (689, 29685), (795, 25727), (1979, 10335), (2067, 9895), (3445, 5937)]