19991763118

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{269}}^1\times {\mathrm{641}}^1\times {\mathrm{1999}}^1$

素因数の和:2940

約数の個数: 32

約数和(自身を含む): 31201200000

約数和(自身を除く): 11209436882

約数列:

[1, 2, 29, 58, 269, 538, 641, 1282, 1999, 3998, 7801, 15602, 18589, 37178, 57971, 115942, 172429, 344858, 537731, 1075462, 1281359, 2562718, 5000441, 10000882, 15594199, 31188398, 37159411, 74318822, 344685571, 689371142, 9995881559, 19991763118]

約数ペア:

[(1, 19991763118), (2, 9995881559), (29, 689371142), (58, 344685571), (269, 74318822), (538, 37159411), (641, 31188398), (1282, 15594199), (1999, 10000882), (3998, 5000441), (7801, 2562718), (15602, 1281359), (18589, 1075462), (37178, 537731), (57971, 344858), (115942, 172429)]