199495960

素因数分解:

$2^3\times 5^1\times {\mathrm{4987399}}^1$

素因数の和:4987410

約数の個数: 16

約数和(自身を含む): 448866000

約数和(自身を除く): 249370040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4987399, 9974798, 19949596, 24936995, 39899192, 49873990, 99747980, 199495960]

約数ペア:

[(1, 199495960), (2, 99747980), (4, 49873990), (5, 39899192), (8, 24936995), (10, 19949596), (20, 9974798), (40, 4987399)]