2018787875

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{42839}}^1$

素因数の和:42896

約数の個数: 32

約数和(自身を含む): 2806876800

約数和(自身を除く): 788088925

約数列:

[1, 5, 13, 25, 29, 65, 125, 145, 325, 377, 725, 1625, 1885, 3625, 9425, 42839, 47125, 214195, 556907, 1070975, 1242331, 2784535, 5354875, 6211655, 13922675, 16150303, 31058275, 69613375, 80751515, 155291375, 403757575, 2018787875]

約数ペア:

[(1, 2018787875), (5, 403757575), (13, 155291375), (25, 80751515), (29, 69613375), (65, 31058275), (125, 16150303), (145, 13922675), (325, 6211655), (377, 5354875), (725, 2784535), (1625, 1242331), (1885, 1070975), (3625, 556907), (9425, 214195), (42839, 47125)]