139213375

素因数分解:

$5^3\times 7^1\times {\mathrm{389}}^1\times {\mathrm{409}}^1$

素因数の和:820

約数の個数: 32

約数和(自身を含む): 199555200

約数和(自身を除く): 60341825

約数列:

[1, 5, 7, 25, 35, 125, 175, 389, 409, 875, 1945, 2045, 2723, 2863, 9725, 10225, 13615, 14315, 48625, 51125, 68075, 71575, 159101, 340375, 357875, 795505, 1113707, 3977525, 5568535, 19887625, 27842675, 139213375]

約数ペア:

[(1, 139213375), (5, 27842675), (7, 19887625), (25, 5568535), (35, 3977525), (125, 1113707), (175, 795505), (389, 357875), (409, 340375), (875, 159101), (1945, 71575), (2045, 68075), (2723, 51125), (2863, 48625), (9725, 14315), (10225, 13615)]