7287440

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1283}}^1$

素因数の和:1367

約数の個数: 40

約数和(自身を含む): 17195328

約数和(自身を除く): 9907888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1283, 1420, 2566, 2840, 5132, 5680, 6415, 10264, 12830, 20528, 25660, 51320, 91093, 102640, 182186, 364372, 455465, 728744, 910930, 1457488, 1821860, 3643720, 7287440]

約数ペア:

[(1, 7287440), (2, 3643720), (4, 1821860), (5, 1457488), (8, 910930), (10, 728744), (16, 455465), (20, 364372), (40, 182186), (71, 102640), (80, 91093), (142, 51320), (284, 25660), (355, 20528), (568, 12830), (710, 10264), (1136, 6415), (1283, 5680), (1420, 5132), (2566, 2840)]