19990130

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{6917}}^1$

素因数の和:6958

約数の個数: 24

約数和(自身を含む): 38228868

約数和(自身を除く): 18238738

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 289, 578, 1445, 2890, 6917, 13834, 34585, 69170, 117589, 235178, 587945, 1175890, 1999013, 3998026, 9995065, 19990130]

約数ペア:

[(1, 19990130), (2, 9995065), (5, 3998026), (10, 1999013), (17, 1175890), (34, 587945), (85, 235178), (170, 117589), (289, 69170), (578, 34585), (1445, 13834), (2890, 6917)]