397777825

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{4339}}^1$

素因数の和:4561

約数の個数: 24

約数和(自身を含む): 522015200

約数和(自身を除く): 124237375

約数列:

[1, 5, 19, 25, 95, 193, 475, 965, 3667, 4339, 4825, 18335, 21695, 82441, 91675, 108475, 412205, 837427, 2061025, 4187135, 15911113, 20935675, 79555565, 397777825]

約数ペア:

[(1, 397777825), (5, 79555565), (19, 20935675), (25, 15911113), (95, 4187135), (193, 2061025), (475, 837427), (965, 412205), (3667, 108475), (4339, 91675), (4825, 82441), (18335, 21695)]