12615280

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2221}}^1$

素因数の和:2305

約数の個数: 40

約数和(自身を含む): 29757024

約数和(自身を除く): 17141744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2221, 2840, 4442, 5680, 8884, 11105, 17768, 22210, 35536, 44420, 88840, 157691, 177680, 315382, 630764, 788455, 1261528, 1576910, 2523056, 3153820, 6307640, 12615280]

約数ペア:

[(1, 12615280), (2, 6307640), (4, 3153820), (5, 2523056), (8, 1576910), (10, 1261528), (16, 788455), (20, 630764), (40, 315382), (71, 177680), (80, 157691), (142, 88840), (284, 44420), (355, 35536), (568, 22210), (710, 17768), (1136, 11105), (1420, 8884), (2221, 5680), (2840, 4442)]