20419188

素因数分解:

$2^2\times 3^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{233}}^1$

素因数の和:416

約数の個数: 48

約数和(自身を含む): 49008960

約数和(自身を除く): 28589772

約数列:

[1, 2, 3, 4, 6, 12, 67, 109, 134, 201, 218, 233, 268, 327, 402, 436, 466, 654, 699, 804, 932, 1308, 1398, 2796, 7303, 14606, 15611, 21909, 25397, 29212, 31222, 43818, 46833, 50794, 62444, 76191, 87636, 93666, 101588, 152382, 187332, 304764, 1701599, 3403198, 5104797, 6806396, 10209594, 20419188]

約数ペア:

[(1, 20419188), (2, 10209594), (3, 6806396), (4, 5104797), (6, 3403198), (12, 1701599), (67, 304764), (109, 187332), (134, 152382), (201, 101588), (218, 93666), (233, 87636), (268, 76191), (327, 62444), (402, 50794), (436, 46833), (466, 43818), (654, 31222), (699, 29212), (804, 25397), (932, 21909), (1308, 15611), (1398, 14606), (2796, 7303)]