30828920

素因数分解:

$2^3\times 5^1\times {\mathrm{547}}^1\times {\mathrm{1409}}^1$

素因数の和:1967

約数の個数: 32

約数和(自身を含む): 69541200

約数和(自身を除く): 38712280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 547, 1094, 1409, 2188, 2735, 2818, 4376, 5470, 5636, 7045, 10940, 11272, 14090, 21880, 28180, 56360, 770723, 1541446, 3082892, 3853615, 6165784, 7707230, 15414460, 30828920]

約数ペア:

[(1, 30828920), (2, 15414460), (4, 7707230), (5, 6165784), (8, 3853615), (10, 3082892), (20, 1541446), (40, 770723), (547, 56360), (1094, 28180), (1409, 21880), (2188, 14090), (2735, 11272), (2818, 10940), (4376, 7045), (5470, 5636)]