2017201990

素因数分解:

$2^1\times 5^1\times {\mathrm{9091}}^1\times {\mathrm{22189}}^1$

素因数の和:31287

約数の個数: 16

約数和(自身を含む): 3631526640

約数和(自身を除く): 1614324650

約数列:

[1, 2, 5, 10, 9091, 18182, 22189, 44378, 45455, 90910, 110945, 221890, 201720199, 403440398, 1008600995, 2017201990]

約数ペア:

[(1, 2017201990), (2, 1008600995), (5, 403440398), (10, 201720199), (9091, 221890), (18182, 110945), (22189, 90910), (44378, 45455)]