20185315

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{53}}^1\times {\mathrm{211}}^1$

素因数の和:307

約数の個数: 24

約数和(自身を含む): 26170128

約数和(自身を除く): 5984813

約数列:

[1, 5, 19, 53, 95, 211, 265, 361, 1007, 1055, 1805, 4009, 5035, 11183, 19133, 20045, 55915, 76171, 95665, 212477, 380855, 1062385, 4037063, 20185315]

約数ペア:

[(1, 20185315), (5, 4037063), (19, 1062385), (53, 380855), (95, 212477), (211, 95665), (265, 76171), (361, 55915), (1007, 20045), (1055, 19133), (1805, 11183), (4009, 5035)]