199656875

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{257}}^1$

素因数の和:401

約数の個数: 40

約数和(自身を含む): 275649264

約数和(自身を除く): 75992389

約数列:

[1, 5, 11, 25, 55, 113, 125, 257, 275, 565, 625, 1243, 1285, 1375, 2825, 2827, 6215, 6425, 6875, 14125, 14135, 29041, 31075, 32125, 70625, 70675, 145205, 155375, 160625, 319451, 353375, 726025, 776875, 1597255, 1766875, 3630125, 7986275, 18150625, 39931375, 199656875]

約数ペア:

[(1, 199656875), (5, 39931375), (11, 18150625), (25, 7986275), (55, 3630125), (113, 1766875), (125, 1597255), (257, 776875), (275, 726025), (565, 353375), (625, 319451), (1243, 160625), (1285, 155375), (1375, 145205), (2825, 70675), (2827, 70625), (6215, 32125), (6425, 31075), (6875, 29041), (14125, 14135)]