19928740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{76649}}^1$

素因数の和:76671

約数の個数: 24

約数和(自身を含む): 45070200

約数和(自身を除く): 25141460

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 76649, 153298, 306596, 383245, 766490, 996437, 1532980, 1992874, 3985748, 4982185, 9964370, 19928740]

約数ペア:

[(1, 19928740), (2, 9964370), (4, 4982185), (5, 3985748), (10, 1992874), (13, 1532980), (20, 996437), (26, 766490), (52, 383245), (65, 306596), (130, 153298), (260, 76649)]