31000880

素因数分解:

$2^4\times 5^1\times {\mathrm{479}}^1\times {\mathrm{809}}^1$

素因数の和:1301

約数の個数: 40

約数和(自身を含む): 72316800

約数和(自身を除く): 41315920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 479, 809, 958, 1618, 1916, 2395, 3236, 3832, 4045, 4790, 6472, 7664, 8090, 9580, 12944, 16180, 19160, 32360, 38320, 64720, 387511, 775022, 1550044, 1937555, 3100088, 3875110, 6200176, 7750220, 15500440, 31000880]

約数ペア:

[(1, 31000880), (2, 15500440), (4, 7750220), (5, 6200176), (8, 3875110), (10, 3100088), (16, 1937555), (20, 1550044), (40, 775022), (80, 387511), (479, 64720), (809, 38320), (958, 32360), (1618, 19160), (1916, 16180), (2395, 12944), (3236, 9580), (3832, 8090), (4045, 7664), (4790, 6472)]