199417780

素因数分解:

$2^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{43541}}^1$

素因数の和:43779

約数の個数: 24

約数和(自身を含む): 420615720

約数和(自身を除く): 221197940

約数列:

[1, 2, 4, 5, 10, 20, 229, 458, 916, 1145, 2290, 4580, 43541, 87082, 174164, 217705, 435410, 870820, 9970889, 19941778, 39883556, 49854445, 99708890, 199417780]

約数ペア:

[(1, 199417780), (2, 99708890), (4, 49854445), (5, 39883556), (10, 19941778), (20, 9970889), (229, 870820), (458, 435410), (916, 217705), (1145, 174164), (2290, 87082), (4580, 43541)]