520425

素因数分解:

$3^4\times 5^2\times {\mathrm{257}}^1$

素因数の和:279

約数の個数: 30

約数和(自身を含む): 967758

約数和(自身を除く): 447333

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 257, 405, 675, 771, 1285, 2025, 2313, 3855, 6425, 6939, 11565, 19275, 20817, 34695, 57825, 104085, 173475, 520425]

約数ペア:

[(1, 520425), (3, 173475), (5, 104085), (9, 57825), (15, 34695), (25, 20817), (27, 19275), (45, 11565), (75, 6939), (81, 6425), (135, 3855), (225, 2313), (257, 2025), (405, 1285), (675, 771)]