28641740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{3967}}^1$

素因数の和:4014

約数の個数: 36

約数和(自身を含む): 63495936

約数和(自身を除く): 34854196

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1805, 3610, 3967, 7220, 7934, 15868, 19835, 39670, 75373, 79340, 150746, 301492, 376865, 753730, 1432087, 1507460, 2864174, 5728348, 7160435, 14320870, 28641740]

約数ペア:

[(1, 28641740), (2, 14320870), (4, 7160435), (5, 5728348), (10, 2864174), (19, 1507460), (20, 1432087), (38, 753730), (76, 376865), (95, 301492), (190, 150746), (361, 79340), (380, 75373), (722, 39670), (1444, 19835), (1805, 15868), (3610, 7934), (3967, 7220)]