199998380

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{57803}}^1$

素因数の和:57985

約数の個数: 24

約数和(自身を含む): 422431632

約数和(自身を除く): 222433252

約数列:

[1, 2, 4, 5, 10, 20, 173, 346, 692, 865, 1730, 3460, 57803, 115606, 231212, 289015, 578030, 1156060, 9999919, 19999838, 39999676, 49999595, 99999190, 199998380]

約数ペア:

[(1, 199998380), (2, 99999190), (4, 49999595), (5, 39999676), (10, 19999838), (20, 9999919), (173, 1156060), (346, 578030), (692, 289015), (865, 231212), (1730, 115606), (3460, 57803)]