201909980

素因数分解:

$2^2\times 5^1\times {\mathrm{317}}^1\times {\mathrm{31847}}^1$

素因数の和:32173

約数の個数: 24

約数和(自身を含む): 425361888

約数和(自身を除く): 223451908

約数列:

[1, 2, 4, 5, 10, 20, 317, 634, 1268, 1585, 3170, 6340, 31847, 63694, 127388, 159235, 318470, 636940, 10095499, 20190998, 40381996, 50477495, 100954990, 201909980]

約数ペア:

[(1, 201909980), (2, 100954990), (4, 50477495), (5, 40381996), (10, 20190998), (20, 10095499), (317, 636940), (634, 318470), (1268, 159235), (1585, 127388), (3170, 63694), (6340, 31847)]