19359820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^2\times {\mathrm{1151}}^1$

素因数の和:1218

約数の個数: 36

約数和(自身を含む): 42142464

約数和(自身を除く): 22782644

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 841, 1151, 1682, 2302, 3364, 4205, 4604, 5755, 8410, 11510, 16820, 23020, 33379, 66758, 133516, 166895, 333790, 667580, 967991, 1935982, 3871964, 4839955, 9679910, 19359820]

約数ペア:

[(1, 19359820), (2, 9679910), (4, 4839955), (5, 3871964), (10, 1935982), (20, 967991), (29, 667580), (58, 333790), (116, 166895), (145, 133516), (290, 66758), (580, 33379), (841, 23020), (1151, 16820), (1682, 11510), (2302, 8410), (3364, 5755), (4205, 4604)]