870840340

素因数分解:

$2^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{165559}}^1$

素因数の和:165831

約数の個数: 24

約数和(自身を含む): 1835729280

約数和(自身を除く): 964888940

約数列:

[1, 2, 4, 5, 10, 20, 263, 526, 1052, 1315, 2630, 5260, 165559, 331118, 662236, 827795, 1655590, 3311180, 43542017, 87084034, 174168068, 217710085, 435420170, 870840340]

約数ペア:

[(1, 870840340), (2, 435420170), (4, 217710085), (5, 174168068), (10, 87084034), (20, 43542017), (263, 3311180), (526, 1655590), (1052, 827795), (1315, 662236), (2630, 331118), (5260, 165559)]