216794890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{163}}^1\times {\mathrm{787}}^1$

素因数の和:983

約数の個数: 48

約数和(自身を含む): 425690208

約数和(自身を除く): 208895318

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 163, 169, 326, 338, 787, 815, 845, 1574, 1630, 1690, 2119, 3935, 4238, 7870, 10231, 10595, 20462, 21190, 27547, 51155, 55094, 102310, 128281, 133003, 137735, 256562, 266006, 275470, 641405, 665015, 1282810, 1330030, 1667653, 3335306, 8338265, 16676530, 21679489, 43358978, 108397445, 216794890]

約数ペア:

[(1, 216794890), (2, 108397445), (5, 43358978), (10, 21679489), (13, 16676530), (26, 8338265), (65, 3335306), (130, 1667653), (163, 1330030), (169, 1282810), (326, 665015), (338, 641405), (787, 275470), (815, 266006), (845, 256562), (1574, 137735), (1630, 133003), (1690, 128281), (2119, 102310), (3935, 55094), (4238, 51155), (7870, 27547), (10231, 21190), (10595, 20462)]