205400375

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{593}}^1$

素因数の和:788

約数の個数: 32

約数和(自身を含む): 273544128

約数和(自身を除く): 68143753

約数列:

[1, 5, 17, 25, 85, 125, 163, 425, 593, 815, 2125, 2771, 2965, 4075, 10081, 13855, 14825, 20375, 50405, 69275, 74125, 96659, 252025, 346375, 483295, 1260125, 1643203, 2416475, 8216015, 12082375, 41080075, 205400375]

約数ペア:

[(1, 205400375), (5, 41080075), (17, 12082375), (25, 8216015), (85, 2416475), (125, 1643203), (163, 1260125), (425, 483295), (593, 346375), (815, 252025), (2125, 96659), (2771, 74125), (2965, 69275), (4075, 50405), (10081, 20375), (13855, 14825)]