19544540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{2707}}^1$

素因数の和:2754

約数の個数: 36

約数和(自身を含む): 43333416

約数和(自身を除く): 23788876

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1805, 2707, 3610, 5414, 7220, 10828, 13535, 27070, 51433, 54140, 102866, 205732, 257165, 514330, 977227, 1028660, 1954454, 3908908, 4886135, 9772270, 19544540]

約数ペア:

[(1, 19544540), (2, 9772270), (4, 4886135), (5, 3908908), (10, 1954454), (19, 1028660), (20, 977227), (38, 514330), (76, 257165), (95, 205732), (190, 102866), (361, 54140), (380, 51433), (722, 27070), (1444, 13535), (1805, 10828), (2707, 7220), (3610, 5414)]