720332921

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{647}}^1\times {\mathrm{761}}^1$

素因数の和:1445

約数の個数: 32

約数和(自身を含む): 948049920

約数和(自身を除く): 227716999

約数列:

[1, 7, 11, 19, 77, 133, 209, 647, 761, 1463, 4529, 5327, 7117, 8371, 12293, 14459, 49819, 58597, 86051, 101213, 135223, 159049, 492367, 946561, 1113343, 3446569, 5416037, 9354973, 37912259, 65484811, 102904703, 720332921]

約数ペア:

[(1, 720332921), (7, 102904703), (11, 65484811), (19, 37912259), (77, 9354973), (133, 5416037), (209, 3446569), (647, 1113343), (761, 946561), (1463, 492367), (4529, 159049), (5327, 135223), (7117, 101213), (8371, 86051), (12293, 58597), (14459, 49819)]