128712025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{257}}^1$

素因数の和:370

約数の個数: 48

約数和(自身を含む): 182738304

約数和(自身を除く): 54026279

約数列:

[1, 5, 13, 23, 25, 65, 67, 115, 257, 299, 325, 335, 575, 871, 1285, 1495, 1541, 1675, 3341, 4355, 5911, 6425, 7475, 7705, 16705, 17219, 20033, 21775, 29555, 38525, 76843, 83525, 86095, 100165, 147775, 223847, 384215, 396037, 430475, 500825, 1119235, 1921075, 1980185, 5148481, 5596175, 9900925, 25742405, 128712025]

約数ペア:

[(1, 128712025), (5, 25742405), (13, 9900925), (23, 5596175), (25, 5148481), (65, 1980185), (67, 1921075), (115, 1119235), (257, 500825), (299, 430475), (325, 396037), (335, 384215), (575, 223847), (871, 147775), (1285, 100165), (1495, 86095), (1541, 83525), (1675, 76843), (3341, 38525), (4355, 29555), (5911, 21775), (6425, 20033), (7475, 17219), (7705, 16705)]