31384760

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71329}}^1$

素因数の和:71351

約数の個数: 32

約数和(自身を含む): 77036400

約数和(自身を除く): 45651640

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 71329, 142658, 285316, 356645, 570632, 713290, 784619, 1426580, 1569238, 2853160, 3138476, 3923095, 6276952, 7846190, 15692380, 31384760]

約数ペア:

[(1, 31384760), (2, 15692380), (4, 7846190), (5, 6276952), (8, 3923095), (10, 3138476), (11, 2853160), (20, 1569238), (22, 1426580), (40, 784619), (44, 713290), (55, 570632), (88, 356645), (110, 285316), (220, 142658), (440, 71329)]