289170025

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{179}}^2$

素因数の和:406

約数の個数: 27

約数和(自身を含む): 380562231

約数和(自身を除く): 91392206

約数列:

[1, 5, 19, 25, 95, 179, 361, 475, 895, 1805, 3401, 4475, 9025, 17005, 32041, 64619, 85025, 160205, 323095, 608779, 801025, 1615475, 3043895, 11566801, 15219475, 57834005, 289170025]

約数ペア:

[(1, 289170025), (5, 57834005), (19, 15219475), (25, 11566801), (95, 3043895), (179, 1615475), (361, 801025), (475, 608779), (895, 323095), (1805, 160205), (3401, 85025), (4475, 64619), (9025, 32041)]