31791440

素因数分解:

$2^4\times 5^1\times {\mathrm{263}}^1\times {\mathrm{1511}}^1$

素因数の和:1787

約数の個数: 40

約数和(自身を含む): 74245248

約数和(自身を除く): 42453808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 263, 526, 1052, 1315, 1511, 2104, 2630, 3022, 4208, 5260, 6044, 7555, 10520, 12088, 15110, 21040, 24176, 30220, 60440, 120880, 397393, 794786, 1589572, 1986965, 3179144, 3973930, 6358288, 7947860, 15895720, 31791440]

約数ペア:

[(1, 31791440), (2, 15895720), (4, 7947860), (5, 6358288), (8, 3973930), (10, 3179144), (16, 1986965), (20, 1589572), (40, 794786), (80, 397393), (263, 120880), (526, 60440), (1052, 30220), (1315, 24176), (1511, 21040), (2104, 15110), (2630, 12088), (3022, 10520), (4208, 7555), (5260, 6044)]