2912080

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{409}}^1$

素因数の和:511

約数の個数: 40

約数和(自身を含む): 6863400

約数和(自身を除く): 3951320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 409, 445, 712, 818, 890, 1424, 1636, 1780, 2045, 3272, 3560, 4090, 6544, 7120, 8180, 16360, 32720, 36401, 72802, 145604, 182005, 291208, 364010, 582416, 728020, 1456040, 2912080]

約数ペア:

[(1, 2912080), (2, 1456040), (4, 728020), (5, 582416), (8, 364010), (10, 291208), (16, 182005), (20, 145604), (40, 72802), (80, 36401), (89, 32720), (178, 16360), (356, 8180), (409, 7120), (445, 6544), (712, 4090), (818, 3560), (890, 3272), (1424, 2045), (1636, 1780)]