257984775

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{67447}}^1$

素因数の和:67480

約数の個数: 36

約数和(自身を含む): 489267792

約数和(自身を除く): 231283017

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 153, 225, 255, 425, 765, 1275, 3825, 67447, 202341, 337235, 607023, 1011705, 1146599, 1686175, 3035115, 3439797, 5058525, 5732995, 10319391, 15175575, 17198985, 28664975, 51596955, 85994925, 257984775]

約数ペア:

[(1, 257984775), (3, 85994925), (5, 51596955), (9, 28664975), (15, 17198985), (17, 15175575), (25, 10319391), (45, 5732995), (51, 5058525), (75, 3439797), (85, 3035115), (153, 1686175), (225, 1146599), (255, 1011705), (425, 607023), (765, 337235), (1275, 202341), (3825, 67447)]