19416820

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{7411}}^1$

素因数の和:7551

約数の個数: 24

約数和(自身を含む): 41092128

約数和(自身を除く): 21675308

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 7411, 14822, 29644, 37055, 74110, 148220, 970841, 1941682, 3883364, 4854205, 9708410, 19416820]

約数ペア:

[(1, 19416820), (2, 9708410), (4, 4854205), (5, 3883364), (10, 1941682), (20, 970841), (131, 148220), (262, 74110), (524, 37055), (655, 29644), (1310, 14822), (2620, 7411)]