980799475

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{20047}}^1$

素因数の和:20179

約数の個数: 24

約数和(自身を含む): 1292695040

約数和(自身を除く): 311895565

約数列:

[1, 5, 19, 25, 95, 103, 475, 515, 1957, 2575, 9785, 20047, 48925, 100235, 380893, 501175, 1904465, 2064841, 9522325, 10324205, 39231979, 51621025, 196159895, 980799475]

約数ペア:

[(1, 980799475), (5, 196159895), (19, 51621025), (25, 39231979), (95, 10324205), (103, 9522325), (475, 2064841), (515, 1904465), (1957, 501175), (2575, 380893), (9785, 100235), (20047, 48925)]