127699420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{155731}}^1$

素因数の和:155781

約数の個数: 24

約数和(自身を含む): 274711248

約数和(自身を除く): 147011828

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 155731, 311462, 622924, 778655, 1557310, 3114620, 6384971, 12769942, 25539884, 31924855, 63849710, 127699420]

約数ペア:

[(1, 127699420), (2, 63849710), (4, 31924855), (5, 25539884), (10, 12769942), (20, 6384971), (41, 3114620), (82, 1557310), (164, 778655), (205, 622924), (410, 311462), (820, 155731)]