258616315

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{991}}^1$

素因数の和:1123

約数の個数: 32

約数和(自身を含む): 339978240

約数和(自身を除く): 81361925

約数列:

[1, 5, 19, 41, 67, 95, 205, 335, 779, 991, 1273, 2747, 3895, 4955, 6365, 13735, 18829, 40631, 52193, 66397, 94145, 203155, 260965, 331985, 771989, 1261543, 2722277, 3859945, 6307715, 13611385, 51723263, 258616315]

約数ペア:

[(1, 258616315), (5, 51723263), (19, 13611385), (41, 6307715), (67, 3859945), (95, 2722277), (205, 1261543), (335, 771989), (779, 331985), (991, 260965), (1273, 203155), (2747, 94145), (3895, 66397), (4955, 52193), (6365, 40631), (13735, 18829)]