20419125

素因数分解:

$3^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{3203}}^1$

素因数の和:3238

約数の個数: 32

約数和(自身を含む): 35987328

約数和(自身を除く): 15568203

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 125, 255, 375, 425, 1275, 2125, 3203, 6375, 9609, 16015, 48045, 54451, 80075, 163353, 240225, 272255, 400375, 816765, 1201125, 1361275, 4083825, 6806375, 20419125]

約数ペア:

[(1, 20419125), (3, 6806375), (5, 4083825), (15, 1361275), (17, 1201125), (25, 816765), (51, 400375), (75, 272255), (85, 240225), (125, 163353), (255, 80075), (375, 54451), (425, 48045), (1275, 16015), (2125, 9609), (3203, 6375)]