20125275

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{487}}^1$

素因数の和:548

約数の個数: 48

約数和(自身を含む): 36307200

約数和(自身を除く): 16181925

約数列:

[1, 3, 5, 15, 19, 25, 29, 57, 75, 87, 95, 145, 285, 435, 475, 487, 551, 725, 1425, 1461, 1653, 2175, 2435, 2755, 7305, 8265, 9253, 12175, 13775, 14123, 27759, 36525, 41325, 42369, 46265, 70615, 138795, 211845, 231325, 268337, 353075, 693975, 805011, 1059225, 1341685, 4025055, 6708425, 20125275]

約数ペア:

[(1, 20125275), (3, 6708425), (5, 4025055), (15, 1341685), (19, 1059225), (25, 805011), (29, 693975), (57, 353075), (75, 268337), (87, 231325), (95, 211845), (145, 138795), (285, 70615), (435, 46265), (475, 42369), (487, 41325), (551, 36525), (725, 27759), (1425, 14123), (1461, 13775), (1653, 12175), (2175, 9253), (2435, 8265), (2755, 7305)]