22055720

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1123}}^1$

素因数の和:1625

約数の個数: 32

約数和(自身を含む): 49770720

約数和(自身を除く): 27715000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1123, 1964, 2246, 2455, 3928, 4492, 4910, 5615, 8984, 9820, 11230, 19640, 22460, 44920, 551393, 1102786, 2205572, 2756965, 4411144, 5513930, 11027860, 22055720]

約数ペア:

[(1, 22055720), (2, 11027860), (4, 5513930), (5, 4411144), (8, 2756965), (10, 2205572), (20, 1102786), (40, 551393), (491, 44920), (982, 22460), (1123, 19640), (1964, 11230), (2246, 9820), (2455, 8984), (3928, 5615), (4492, 4910)]