15420175

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{197}}^1$

素因数の和:339

約数の個数: 24

約数和(自身を含む): 20034432

約数和(自身を除く): 4614257

約数列:

[1, 5, 25, 31, 101, 155, 197, 505, 775, 985, 2525, 3131, 4925, 6107, 15655, 19897, 30535, 78275, 99485, 152675, 497425, 616807, 3084035, 15420175]

約数ペア:

[(1, 15420175), (5, 3084035), (25, 616807), (31, 497425), (101, 152675), (155, 99485), (197, 78275), (505, 30535), (775, 19897), (985, 15655), (2525, 6107), (3131, 4925)]