20578805

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{877}}^1$

素因数の和:933

約数の個数: 24

約数和(自身を含む): 28099512

約数和(自身を除く): 7520707

約数列:

[1, 5, 13, 19, 65, 95, 247, 361, 877, 1235, 1805, 4385, 4693, 11401, 16663, 23465, 57005, 83315, 216619, 316597, 1083095, 1582985, 4115761, 20578805]

約数ペア:

[(1, 20578805), (5, 4115761), (13, 1582985), (19, 1083095), (65, 316597), (95, 216619), (247, 83315), (361, 57005), (877, 23465), (1235, 16663), (1805, 11401), (4385, 4693)]