208319790

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{991999}}^1$

素因数の和:992016

約数の個数: 32

約数和(自身を含む): 571392000

約数和(自身を除く): 363072210

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 991999, 1983998, 2975997, 4959995, 5951994, 6943993, 9919990, 13887986, 14879985, 20831979, 29759970, 34719965, 41663958, 69439930, 104159895, 208319790]

約数ペア:

[(1, 208319790), (2, 104159895), (3, 69439930), (5, 41663958), (6, 34719965), (7, 29759970), (10, 20831979), (14, 14879985), (15, 13887986), (21, 9919990), (30, 6943993), (35, 5951994), (42, 4959995), (70, 2975997), (105, 1983998), (210, 991999)]