209990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1$

素因数の和:124

約数の個数: 32

約数和(自身を含む): 435456

約数和(自身を除く): 225466

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 83, 110, 115, 166, 230, 253, 415, 506, 830, 913, 1265, 1826, 1909, 2530, 3818, 4565, 9130, 9545, 19090, 20999, 41998, 104995, 209990]

約数ペア:

[(1, 209990), (2, 104995), (5, 41998), (10, 20999), (11, 19090), (22, 9545), (23, 9130), (46, 4565), (55, 3818), (83, 2530), (110, 1909), (115, 1826), (166, 1265), (230, 913), (253, 830), (415, 506)]