18136480

素因数分解:

$2^5\times 5^1\times {\mathrm{263}}^1\times {\mathrm{431}}^1$

素因数の和:709

約数の個数: 48

約数和(自身を含む): 43110144

約数和(自身を除く): 24973664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 263, 431, 526, 862, 1052, 1315, 1724, 2104, 2155, 2630, 3448, 4208, 4310, 5260, 6896, 8416, 8620, 10520, 13792, 17240, 21040, 34480, 42080, 68960, 113353, 226706, 453412, 566765, 906824, 1133530, 1813648, 2267060, 3627296, 4534120, 9068240, 18136480]

約数ペア:

[(1, 18136480), (2, 9068240), (4, 4534120), (5, 3627296), (8, 2267060), (10, 1813648), (16, 1133530), (20, 906824), (32, 566765), (40, 453412), (80, 226706), (160, 113353), (263, 68960), (431, 42080), (526, 34480), (862, 21040), (1052, 17240), (1315, 13792), (1724, 10520), (2104, 8620), (2155, 8416), (2630, 6896), (3448, 5260), (4208, 4310)]