71820040

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{6827}}^1$

素因数の和:7101

約数の個数: 32

約数和(自身を含む): 162233280

約数和(自身を除く): 90413240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 2104, 2630, 5260, 6827, 10520, 13654, 27308, 34135, 54616, 68270, 136540, 273080, 1795501, 3591002, 7182004, 8977505, 14364008, 17955010, 35910020, 71820040]

約数ペア:

[(1, 71820040), (2, 35910020), (4, 17955010), (5, 14364008), (8, 8977505), (10, 7182004), (20, 3591002), (40, 1795501), (263, 273080), (526, 136540), (1052, 68270), (1315, 54616), (2104, 34135), (2630, 27308), (5260, 13654), (6827, 10520)]