20197520188

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{233}}^1\times {\mathrm{293}}^1\times {\mathrm{1999}}^1$

素因数の和:2566

約数の個数: 48

約数和(自身を含む): 36599472000

約数和(自身を除く): 16401951812

約数列:

[1, 2, 4, 37, 74, 148, 233, 293, 466, 586, 932, 1172, 1999, 3998, 7996, 8621, 10841, 17242, 21682, 34484, 43364, 68269, 73963, 136538, 147926, 273076, 295852, 465767, 585707, 931534, 1171414, 1863068, 2342828, 2525953, 5051906, 10103812, 17233379, 21671159, 34466758, 43342318, 68933516, 86684636, 136469731, 272939462, 545878924, 5049380047, 10098760094, 20197520188]

約数ペア:

[(1, 20197520188), (2, 10098760094), (4, 5049380047), (37, 545878924), (74, 272939462), (148, 136469731), (233, 86684636), (293, 68933516), (466, 43342318), (586, 34466758), (932, 21671159), (1172, 17233379), (1999, 10103812), (3998, 5051906), (7996, 2525953), (8621, 2342828), (10841, 1863068), (17242, 1171414), (21682, 931534), (34484, 585707), (43364, 465767), (68269, 295852), (73963, 273076), (136538, 147926)]