19220620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1069}}^1$

素因数の和:1138

約数の個数: 48

約数和(自身を含む): 43142400

約数和(自身を除く): 23921780

約数列:

[1, 2, 4, 5, 10, 20, 29, 31, 58, 62, 116, 124, 145, 155, 290, 310, 580, 620, 899, 1069, 1798, 2138, 3596, 4276, 4495, 5345, 8990, 10690, 17980, 21380, 31001, 33139, 62002, 66278, 124004, 132556, 155005, 165695, 310010, 331390, 620020, 662780, 961031, 1922062, 3844124, 4805155, 9610310, 19220620]

約数ペア:

[(1, 19220620), (2, 9610310), (4, 4805155), (5, 3844124), (10, 1922062), (20, 961031), (29, 662780), (31, 620020), (58, 331390), (62, 310010), (116, 165695), (124, 155005), (145, 132556), (155, 124004), (290, 66278), (310, 62002), (580, 33139), (620, 31001), (899, 21380), (1069, 17980), (1798, 10690), (2138, 8990), (3596, 5345), (4276, 4495)]