15138725

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 23510400

約数和(自身を除く): 8371675

約数列:

[1, 5, 7, 19, 25, 29, 35, 95, 133, 145, 157, 175, 203, 475, 551, 665, 725, 785, 1015, 1099, 2755, 2983, 3325, 3857, 3925, 4553, 5075, 5495, 13775, 14915, 19285, 20881, 22765, 27475, 31871, 74575, 86507, 96425, 104405, 113825, 159355, 432535, 522025, 605549, 796775, 2162675, 3027745, 15138725]

約数ペア:

[(1, 15138725), (5, 3027745), (7, 2162675), (19, 796775), (25, 605549), (29, 522025), (35, 432535), (95, 159355), (133, 113825), (145, 104405), (157, 96425), (175, 86507), (203, 74575), (475, 31871), (551, 27475), (665, 22765), (725, 20881), (785, 19285), (1015, 14915), (1099, 13775), (2755, 5495), (2983, 5075), (3325, 4553), (3857, 3925)]