20880316

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{6701}}^1$

素因数の和:6765

約数の個数: 24

約数和(自身を含む): 39407760

約数和(自身を除く): 18527444

約数列:

[1, 2, 4, 19, 38, 41, 76, 82, 164, 779, 1558, 3116, 6701, 13402, 26804, 127319, 254638, 274741, 509276, 549482, 1098964, 5220079, 10440158, 20880316]

約数ペア:

[(1, 20880316), (2, 10440158), (4, 5220079), (19, 1098964), (38, 549482), (41, 509276), (76, 274741), (82, 254638), (164, 127319), (779, 26804), (1558, 13402), (3116, 6701)]