20858528035

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1097}}^1\times {\mathrm{2819}}^1$

素因数の和:4011

約数の個数: 32

約数和(自身を含む): 26752550400

約数和(自身を除く): 5894022365

約数列:

[1, 5, 19, 71, 95, 355, 1097, 1349, 2819, 5485, 6745, 14095, 20843, 53561, 77887, 104215, 200149, 267805, 389435, 1000745, 1479853, 3092443, 3802831, 7399265, 15462215, 19014155, 58756417, 219563453, 293782085, 1097817265, 4171705607, 20858528035]

約数ペア:

[(1, 20858528035), (5, 4171705607), (19, 1097817265), (71, 293782085), (95, 219563453), (355, 58756417), (1097, 19014155), (1349, 15462215), (2819, 7399265), (5485, 3802831), (6745, 3092443), (14095, 1479853), (20843, 1000745), (53561, 389435), (77887, 267805), (104215, 200149)]