15406520

素因数分解:

$2^3\times 5^1\times {\mathrm{283}}^1\times {\mathrm{1361}}^1$

素因数の和:1655

約数の個数: 32

約数和(自身を含む): 34812720

約数和(自身を除く): 19406200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 283, 566, 1132, 1361, 1415, 2264, 2722, 2830, 5444, 5660, 6805, 10888, 11320, 13610, 27220, 54440, 385163, 770326, 1540652, 1925815, 3081304, 3851630, 7703260, 15406520]

約数ペア:

[(1, 15406520), (2, 7703260), (4, 3851630), (5, 3081304), (8, 1925815), (10, 1540652), (20, 770326), (40, 385163), (283, 54440), (566, 27220), (1132, 13610), (1361, 11320), (1415, 10888), (2264, 6805), (2722, 5660), (2830, 5444)]