20296725

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{15919}}^1$

素因数の和:15949

約数の個数: 24

約数和(自身を含む): 35533440

約数和(自身を除く): 15236715

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 15919, 47757, 79595, 238785, 270623, 397975, 811869, 1193925, 1353115, 4059345, 6765575, 20296725]

約数ペア:

[(1, 20296725), (3, 6765575), (5, 4059345), (15, 1353115), (17, 1193925), (25, 811869), (51, 397975), (75, 270623), (85, 238785), (255, 79595), (425, 47757), (1275, 15919)]