869784890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1999}}^1\times {\mathrm{3347}}^1$

素因数の和:5366

約数の個数: 32

約数和(自身を含む): 1687392000

約数和(自身を除く): 817607110

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 1999, 3347, 3998, 6694, 9995, 16735, 19990, 25987, 33470, 43511, 51974, 87022, 129935, 217555, 259870, 435110, 6690653, 13381306, 33453265, 66906530, 86978489, 173956978, 434892445, 869784890]

約数ペア:

[(1, 869784890), (2, 434892445), (5, 173956978), (10, 86978489), (13, 66906530), (26, 33453265), (65, 13381306), (130, 6690653), (1999, 435110), (3347, 259870), (3998, 217555), (6694, 129935), (9995, 87022), (16735, 51974), (19990, 43511), (25987, 33470)]