19656340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1901}}^1$

素因数の和:1968

約数の個数: 48

約数和(自身を含む): 46013184

約数和(自身を除く): 26356844

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 47, 55, 94, 110, 188, 220, 235, 470, 517, 940, 1034, 1901, 2068, 2585, 3802, 5170, 7604, 9505, 10340, 19010, 20911, 38020, 41822, 83644, 89347, 104555, 178694, 209110, 357388, 418220, 446735, 893470, 982817, 1786940, 1965634, 3931268, 4914085, 9828170, 19656340]

約数ペア:

[(1, 19656340), (2, 9828170), (4, 4914085), (5, 3931268), (10, 1965634), (11, 1786940), (20, 982817), (22, 893470), (44, 446735), (47, 418220), (55, 357388), (94, 209110), (110, 178694), (188, 104555), (220, 89347), (235, 83644), (470, 41822), (517, 38020), (940, 20911), (1034, 19010), (1901, 10340), (2068, 9505), (2585, 7604), (3802, 5170)]